How to install Scipy with pip on Mac Mountain Lion OS X v10.8

Question

I\'m having serious difficulty installing Scipy with pip on Mountain Lion. I\'ve tried:

sudo pip install -e git+https://github.com/scipy/scipy#egg=scipy-dev
         


        

Answer 1

Installing scipy on Mac OS X with pip is possible! You will need the right C and Fortran compilers on your system to set up scipy. This page should help you:

http://www.scipy.org/scipylib/building/macosx.html

Once you have done that, you should be able to install with pip install scipy.

As an additional troubleshooting note, you might need to create a symlink to your compiler so that the setup process can find it. A previous poster @biophetik gave an example of how to do this.

Also, I already had numpy installed in my virtual environment when I installed scipy. I'm not positive whether/how one depends on the other.

Answer 2

Just to add to what @Anton I. Sipos said. I had the Enthought package installed but had issues with upgrading it, so I decided to go with a clean install using Homebrew. Unfortunately just performing the tap and install didn't work well for me. So on searching a bit I found an issue on GitHub that samualjohn addressed and worked for me:

brew remove python
rm -rf /Library/Python/2.7/site-packages # it's save to delete this!
brew install python
pip install nose
brew install numpy
brew install scipy

The problem was clearly conflicts in the site-packages that the Enthought uninstall instructions did not cover.

NOTE: I had to install matplotlib with pip.

Answer 3

On Mavericks the following works (might also work on other versions):

If you haven't already, install pip

sudo easy_install pip

Then install/update scipy

sudo pip install scipy -U

For some reason pip installs scipy to

/Library/Python/2.7/site-packages/

and does not remove the older version in

/System/Library/Frameworks/Python.framework/Versions/2.7//Extras/lib/python/scipy/

So just remove the old version and it works. Print the version number:

python -c "import scipy; print scipy.__version__"