Traceback (most recent call last):

 "Main.py", line 2, in <module>

 "<frozen importlib._bootstrap>", line 2237, in _find_and_load

 "<frozen importlib._bootstrap>", line 2226, in find_and_load_unlocked

 "<frozen importlib._bootstrap>", line 1191, in _load_unlocked

 "<frozen importlib._bootstrap>", line 1161, in _load_backward_compatible

 "C:\Anaconda3\lib\site-packages\zipextimporter.py", line 86, in load_module
return zipimport.zipimporter.load_module(self, fullname)

 "C:\Anaconda3\lib\site-packages\pandas\__init__.py", line 7, in <module>
from . import hashtable, tslib, lib

 "<frozen importlib._bootstrap>", line 2237, in _find_and_load

 "<frozen importlib._bootstrap>", line 2226, in _find_and_load_unlocked

 "<frozen importlib._bootstrap>", line 1191, in _load_unlocked

 "<frozen importlib._bootstrap>", line 1161, in _load_backward_compatible

 "C:\Anaconda3\lib\site-packages\zipextimporter.py", line 109, in load_module self.get_data)

 "pandas\hashtable.pyx", line 9, in init pandas.hashtable (pandas\hashtable.c:23000)SystemError: Parent module '' not loaded, cannot perform relative import
Traceback (most recent call last):


 "repro.py", line 5, in <module>

scipy.sparse.save_npz('x.npz', x)


 "/usr/local/lib/python2.7/dist-packages/scipy/sparse/_matrix_io.py", line 50, in save_npz

arrays_dict = dict(format=matrix.format, shape=matrix.shape, data=matrix.data)


 "/usr/local/lib/python2.7/dist-packages/scipy/sparse/base.py", line 576, in __getattr__

raise AttributeError(attr + " not found")
AttributeError: data not found
