
Traceback (most recent call last):

 "D:\testcase02.py", line 19, in ?
i.execute(name = name)

 "C:\Tools\Python24\Lib\site-packages\sqlalchemy\sql.py", line 1207, in execute
return self.compile(bind=self.bind, parameters=compile_params).execute(*multiparams, **params)

 "C:\Tools\Python24\Lib\site-packages\sqlalchemy\sql.py", line 1097, in execute
return e.execute_compiled(self, *multiparams, **params)

 "C:\Tools\Python24\Lib\site-packages\sqlalchemy\engine\base.py", line 780, in execute_compiled
return connection.execute_compiled(compiled, *multiparams, **params)

 "C:\Tools\Python24\Lib\site-packages\sqlalchemy\engine\base.py", line 567, in execute_compiled
context.pre_exec()

 "C:\Tools\Python24\Lib\site-packages\sqlalchemy\engine\default.py", line 201, in pre_exec
self.parameters = self._encode_param_keys(self.dialect.convert_compiled_params(self.compiled_parameters))

 "C:\Tools\Python24\Lib\site-packages\sqlalchemy\engine\default.py", line 120, in convert_compiled_params
parameters = parameters.get_raw_list()

 "C:\Tools\Python24\Lib\site-packages\sqlalchemy\sql.py", line 864, in get_raw_list
return [for key in self.positional](self.get_processed(key))

 "C:\Tools\Python24\Lib\site-packages\sqlalchemy\sql.py", line 845, in get_processed
return bind.typeprocess(value, self.dialect)

 "C:\Tools\Python24\Lib\site-packages\sqlalchemy\sql.py", line 1883, in typeprocess
return self.type.dialect_impl(dialect).convert_bind_param(value, dialect)

 "C:\Tools\Python24\lib\site-packages\sqlalchemy\databases\sqlite.py", line 38, in convert_bind_param
return value.strftime(self.__format__)
AttributeError: 'unicode' object has no attribute 'strftime'
Traceback (most recent call last):


 "C:\Users\reads\AppData\Local\Continuum\miniconda3\envs\orange-spec-proto\lib\site-packages\Orange\canvas\scheme\widgetsscheme.py", line 1066, in process_signals_for_widget

handler(*args)


 "C:\Users\reads\AppData\Local\Continuum\miniconda3\envs\orange-spec-proto\lib\site-packages\Orange\widgets\data\owsave.py", line 136, in dataset

if self.data.is_sparse():
AttributeError: 'NoneType' object has no attribute 'is_sparse'
