Traceback (most recent call last):


 "/usr/anaconda3/bin/pylint", line 11, in <module>

sys.exit(run_pylint())


 "/usr/anaconda3/lib/python3.7/site-packages/pylint/__init__.py", line 20, in run_pylint

Run(sys.argv[1:])


 "/usr/anaconda3/lib/python3.7/site-packages/pylint/lint.py", line 1628, in __init__

linter.check(args)


 "/usr/anaconda3/lib/python3.7/site-packages/pylint/lint.py", line 943, in check

self._do_check(files_or_modules)


 "/usr/anaconda3/lib/python3.7/site-packages/pylint/lint.py", line 1075, in _do_check

self.check_astroid_module(ast_node, walker, rawcheckers, tokencheckers)


 "/usr/anaconda3/lib/python3.7/site-packages/pylint/lint.py", line 1158, in check_astroid_module

walker.walk(ast_node)


 "/usr/anaconda3/lib/python3.7/site-packages/pylint/utils.py", line 1303, in walk

self.walk(child)


 "/usr/anaconda3/lib/python3.7/site-packages/pylint/utils.py", line 1303, in walk

self.walk(child)


 "/usr/anaconda3/lib/python3.7/site-packages/pylint/utils.py", line 1300, in walk

cb(astroid)


 "/usr/anaconda3/lib/python3.7/site-packages/pylint/checkers/typecheck.py", line 1435, in visit_unaryop

for error in node.type_errors():


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 4315, in type_errors

for result in results


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 4314, in <listcomp>

result


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/inference.py", line 484, in _infer_unaryop

bool_value = operand.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 491, in infer_bool

bool_value = inferred.bool_value()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 316, in bool_value

result = _infer_method_result_truth(self, BOOL_SPECIAL_METHOD, context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 162, in _infer_method_result_truth

for value in meth.infer_call_result(instance, context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/node_classes.py", line 348, in infer

return self._explicit_inference(self, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/__init__.py", line 93, in _inference_tip_cached

result = func(*args, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 130, in _transform_wrapper

result = transform(node, context=context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/brain/brain_builtin_inference.py", line 485, in infer_bool

inferred = next(argument.infer(context=context))


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/util.py", line 160, in limit_inference

yield from islice(iterator, size)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/context.py", line 113, in cache_generator

for result in generator:


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred

yield next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 95, in wrapped

res = next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call

yield from callee.infer_call_result(caller=self, context=callcontext)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/util.py", line 160, in limit_inference

yield from islice(iterator, size)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/context.py", line 113, in cache_generator

for result in generator:


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred

yield next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 95, in wrapped

res = next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 137, in _infer_stmts

for inferred in stmt.infer(context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/util.py", line 160, in limit_inference

yield from islice(iterator, size)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/context.py", line 113, in cache_generator

for result in generator:


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred

yield next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped

generator = _func(node, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/inference.py", line 832, in infer_assign

stmts = list(self.assigned_stmts(context=context))


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 141, in raise_if_nothing_inferred

yield from generator


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/protocols.py", line 383, in assign_assigned_stmts

self.value.infer(context), assign_path, context


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/protocols.py", line 406, in _resolve_assignment_parts

for part in parts:


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/util.py", line 160, in limit_inference

yield from islice(iterator, size)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/context.py", line 113, in cache_generator

for result in generator:


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 141, in raise_if_nothing_inferred

yield from generator


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 95, in wrapped

res = next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/inference.py", line 219, in infer_call

yield from callee.infer_call_result(caller=self, context=callcontext)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/scoped_nodes.py", line 1664, in infer_call_result

yield from returnnode.value.infer(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/util.py", line 160, in limit_inference

yield from islice(iterator, size)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/context.py", line 113, in cache_generator

for result in generator:


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred

yield next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 95, in wrapped

res = next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/inference.py", line 213, in infer_call

for callee in self.func.infer(context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/util.py", line 160, in limit_inference

yield from islice(iterator, size)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/context.py", line 113, in cache_generator

for result in generator:


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred

yield next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 95, in wrapped

res = next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/bases.py", line 137, in _infer_stmts

for inferred in stmt.infer(context=context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/util.py", line 160, in limit_inference

yield from islice(iterator, size)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/context.py", line 113, in cache_generator

for result in generator:


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred

yield next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped

generator = _func(node, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/inference.py", line 832, in infer_assign

stmts = list(self.assigned_stmts(context=context))


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred

yield next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/protocols.py", line 383, in assign_assigned_stmts

self.value.infer(context), assign_path, context


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/protocols.py", line 406, in _resolve_assignment_parts

for part in parts:


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/util.py", line 160, in limit_inference

yield from islice(iterator, size)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/context.py", line 113, in cache_generator

for result in generator:


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred

yield next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 95, in wrapped

res = next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/inference.py", line 213, in infer_call

for callee in self.func.infer(context):


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/util.py", line 160, in limit_inference

yield from islice(iterator, size)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/context.py", line 113, in cache_generator

for result in generator:


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 131, in raise_if_nothing_inferred

yield next(generator)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/decorators.py", line 92, in wrapped

generator = _func(node, context, **kwargs)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/inference.py", line 189, in infer_name

context = contextmod.copy_context(context)


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/context.py", line 155, in copy_context

return context.clone()


 "/usr/anaconda3/lib/python3.7/site-packages/astroid/context.py", line 102, in clone

clone = InferenceContext(self.path, inferred=self.inferred)
RecursionError: maximum recursion depth exceeded

Traceback (most recent call last):


 "/home/hussam/.local/bin/buildozer", line 8, in <module>

sys.exit(main())


 "/home/hussam/.local/lib/python3.6/site-packages/buildozer/scripts/client.py", line 13, in main

Buildozer().run_command(sys.argv[1:])


 "/home/hussam/.local/lib/python3.6/site-packages/buildozer/__init__.py", line 1062, in run_command

self.target.run_commands(args)


 "/home/hussam/.local/lib/python3.6/site-packages/buildozer/target.py", line 92, in run_commands

func(args)


 "/home/hussam/.local/lib/python3.6/site-packages/buildozer/target.py", line 104, in cmd_debug

self.buildozer.build()


 "/home/hussam/.local/lib/python3.6/site-packages/buildozer/__init__.py", line 222, in build

self.target.build_package()


 "/home/hussam/.local/lib/python3.6/site-packages/buildozer/targets/android.py", line 985, in build_package

self._update_libraries_references(dist_dir)


 "/home/hussam/.local/lib/python3.6/site-packages/buildozer/targets/android.py", line 1198, in _update_libraries_references

with io.open(project_fn, 'w', encoding='utf-8') as fd:

NotFoundError: [Errno 2] No such file or directory: '/mnt/c/users/husam/kivy_apk/.buildozer/android/platform/build-armeabi-v7a/dists/myKivyApp/project.properties'
