raise AttributeError(attr + " not found")

[myrainbowandsky]

How to deal with this issue with python2.7

Traceback (most recent call last):
File "/Users/lawrencexu/Documents/python2pro/Language-Features-for-News-master/Compute_all_features/Compute_all_features.py", line 82, in
NB_pobj, NB_psubj = Functions.subjectivity(text)
File "/Users/lawrencexu/Documents/python2pro/Language-Features-for-News-master/Compute_all_features/resources/feature_functions.py", line 269, in subjectivity
X_new_tfidf = tfidf_transformer.transform(X_new_counts)
File "/Library/Python/2.7/site-packages/scikit_learn-0.20.0-py2.7-macosx-10.15-x86_64.egg/sklearn/feature_extraction/text.py", line 1265, in transform
X = X * self._idf_diag
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/scipy/sparse/base.py", line 303, in mul
return self._mul_sparse_matrix(other)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/scipy/sparse/compressed.py", line 513, in _mul_sparse_matrix
other = self.class(other) # convert to this format
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/scipy/sparse/compressed.py", line 26, in init
if arg1.format == self.format and copy:
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/scipy/sparse/base.py", line 440, in getattr
raise AttributeError(attr + " not found")
AttributeError: format not found