Can't upgrade Scipy

Question

I\'m trying to upgrade Scipy from 0.9.0 to 0.12.0. I use the command:

sudo pip install --upgrade scipy

Answer 1

I found Adam Klein's instructions for setting up scipy (and friends) in a virtual environment very useful.

One problem I ran into (which was probably my own fault): After all was said and done, I found importing scipy still loaded version 0.9.0, not 0.12.0. The problem was that my sys.path was finding the old system version before the new version. The fix was to make

/path/to/.virtualenvs/arthur/local/lib/python2.7/site-packages

appear before

/usr/lib/python2.7/dist-packages

in sys.path. If you have virtualenvwrapper installed, then you can add the path using

add2virtualenv /path/to/.virtualenvs/arthur/lib/python2.7/site-packages