Python: select one of multiple installed module versions

Question

On my system, I have several modules installed multiple times. To give an example, numpy 1.6.1 is installed in the standard path at /usr/lib/python2.7/dis

Answer 1

I had this problem on a Mac I was using without administrator access. My solution was the following:

1. Find the directory of the numpy version you want to use. For me this was /Library/Python/2.7/site-packages

2. Create a file ~/.startup.py and point to it with PYTHONSTARTUP=~/.startup.py in your .bashrc file

3. In .startup.py:

import sys

sys.path.insert(0,'/Library/Python/2.7/site-packages/') <--- imports this BEFORE the standard parts

import numpy

print("Importing numpy version"+numpy.__version__) <---- To remind that we have changed the numpy version

This seems to work fine for me. I hope it helps.