Traceback (most recent call last):


 "/usr/local/lib/python3.6/dist-packages/joblib/externals/loky/process_executor.py", line 418, in _process_worker

r = call_item()


 "/usr/local/lib/python3.6/dist-packages/joblib/externals/loky/process_executor.py", line 272, in __call__

return self.fn(*self.args, **self.kwargs)


 "/usr/local/lib/python3.6/dist-packages/joblib/_parallel_backends.py", line 608, in __call__

return self.func(*args, **kwargs)


 "/usr/local/lib/python3.6/dist-packages/joblib/parallel.py", line 256, in __call__

for func, args, kwargs in self.items]


 "/usr/local/lib/python3.6/dist-packages/joblib/parallel.py", line 256, in <listcomp>

for func, args, kwargs in self.items]


 "/usr/local/lib/python3.6/dist-packages/mlbox/preprocessing/reader.py", line 34, in convert_list

if (serie.apply(lambda x: type(x) == list).sum() > 0):


 "/usr/local/lib/python3.6/dist-packages/pandas/core/series.py", line 4014, in apply

if len(self) == 0:


 "/usr/local/lib/python3.6/dist-packages/pandas/core/series.py", line 727, in __len__

return len(self._data)
TypeError: object of type 'NoneType' has no len()

$ sudo cfn-lint -u
Traceback (most recent call last):


 "/usr/local/bin/cfn-lint", line 10, in <module>

sys.exit(main())


 "/usr/local/lib/python3.5/dist-packages/cfnlint/__main__.py", line 28, in main

(args, filenames, formatter) = cfnlint.core.get_args_filenames(sys.argv[1:])


 "/usr/local/lib/python3.5/dist-packages/cfnlint/core.py", line 120, in get_args_filenames

cfnlint.maintenance.update_resource_specs()


 "/usr/local/lib/python3.5/dist-packages/cfnlint/maintenance.py", line 63, in update_resource_specs

content = json.loads(req.content)


 "/usr/lib/python3.5/json/__init__.py", line 312, in loads

s.__class__.__name__))
TypeError: the JSON object must be str, not 'bytes'
