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I need to have different versions of pandas to be able to import either 0.13 or 0.14 version. I gone in the path "C:\Python27\Lib\site-packages" and changing the directory name of pandas to pandas_013 but I get the following error.

Has someone a solution to have multi version library with python 2.7?

>>> import pandas_013
No module named pandas.compat
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python27\lib\site-packages\pandas_013\__init__.py", line 6, in <module>
    from . import hashtable, tslib, lib
  File "tslib.pyx", line 37, in init pandas.tslib (pandas\tslib.c:55034)
ImportError: No module named pandas.compat
share|improve this question
    
do you need to use both versions side-by-side in the same code base? –  Paul H Apr 30 '14 at 15:32
    
not really an obligation. I want to choose by importing the good package. –  alexis0587 Apr 30 '14 at 15:43
    
Why not use git to switch back and forth? Or virtualenv. Monkey patching package names in site packages can only lead to a universe of pain. –  Phillip Cloud May 1 '14 at 5:53

1 Answer 1

up vote 0 down vote

If you want to use multiple versions, they should be inside your package, probably in a lib package. So then you have mypackage.lib.pandas_013 and mypackage.lib.pandas_014. Next, you need to fix those libraries - remember that they will be filled with imports like the one which errored for you (pandas.compat). So that needs to be changed to mypackage.lib.pandas_013.compat and mypackage.lib.pandas_014.compat, as does every other reference to the original pandas package. An IDE with refactoring or some sed-fu can help here.

share|improve this answer
    
I don't understand the mypackage.lib.pandas_013. Do you want to say that I must have two directory 'C:\Python27\Lib\site-packages\pandas_013' and 'C:\Python27\Lib\site-packages\pandas_014'? Which refactoring do you advice me? Thanks –  alexis0587 Apr 30 '14 at 15:45
    
Oh - did you mean to use pandas from a Python shell, not in your own code? Sorry, you can just use virtualenv then. I thought you wanted both accessible simultaneously (i.e. from the same interpreter). –  Ryan P Apr 30 '14 at 15:48
    
Thx Ryan. I need to be able to do either import pandas_013 or import pandas_014 but the needs is not to do the two in a same script. I will look for virtualenv. –  alexis0587 Apr 30 '14 at 16:29

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