Bizarre errors from Pandas when using the decorator

Wanted to use this but I get bizarre errors from Pandas when I add the decorator to my test function.

The test and the code being tested do not execute any Pandas methods directly, but one of my project modules imports pandas - the error is occurring at import time.

  File "/Users/anentropic/Documents/Dev/Work/anentropic/backend/stats/users.py", line 6, in <module>
    import pandas as pd
  File "/Users/anentropic/.virtualenvs/anentropic/lib/python2.7/site-packages/pandas/__init__.py", line 7, in <module>
    from . import hashtable, tslib, lib
  File "pandas/tslib.pyx", line 614, in init pandas.tslib (pandas/tslib.c:81486)
  File "pandas/tslib.pyx", line 573, in pandas.tslib.NaTType.__new__ (pandas/tslib.c:12539)
TypeError: __new__() takes exactly one argument (4 given)

[ze-phyr-us]

Just ran into this problem too – my frozen test code was importing Pandas, and Pandas import failed with

TypeError: type 'pandas.tslib._Timestamp' is not dynamically allocated but its base type 'FakeDatetime' is dynamically allocated

I got it to work by explicitly importing Pandas before the test code runs.

[bhrutledge]

To give a concrete example of this suggestion from @ze-phyr-us:

I got it to work by explicitly importing Pandas before the test code runs.

I was able to do this by adding import pandas to my global conftest.py.