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

Scipy is also available now via a homebrew tap. If you have homebrew installed:

brew tap samueljohn/python
brew install scipy

See more info here: homebrew-python

Answer 2

I tryed everything: pip, macports,easy_install,... with Mac OS El Captain. The only thing that worked for me was brew:

$ brew install scipy

After that, it will ask you to follow the instructions bellow:

$ brew link --overwrite numpy
$ mkdir -p /Users/adrieljr/Library/Python/2.7/lib/python/site-packages
$ echo 'import sys; sys.path.insert(1, "/usr/local/lib/python2.7/site-packages")' >> /Users/adrieljr/Library/Python/2.7/lib/python/site-packages/homebrew.pth

Answer 3

Here is what worked for me for pip installing matplotlib and scipy inside a virtual environment (Mac OS X 10.9.2 Mavericks):

# See George's answer above
brew update
brew upgrade
brew install gfortran 

# See http://www.scipy.org/scipylib/building/macosx.html (the link Nathan Gould posted above)
export CXX=g++-5.1
export CC=gcc-5.1
export FFLAGS=-ff2c
sudo ln -s /usr/bin/gcc /usr/bin/gcc-5.1
sudo ln -s /usr/bin/g++ /usr/bin/g++-5.1

pip install matplotlib
pip install scipy

matplot lib installed quickly, but scipy took a long time.

Answer 4

I recently also had trouble getting scipy to install on a virtualenv. My problem was that gfortran was not seen properly. I used macports sudo port install gcc48 and created a symlink to just gfortran by:

sudo ln -s /opt/local/bin/gfortran-mp-4.8 /opt/local/bin/gfortran

After that, pip install scipy worked without any errors on my virtualenv.

Answer 5

I had similar issues installing scipy on OSX 10.9 Mavericks as well. What solved it for me is the following:

sudo pip list

was showing numpy, thus I did:

sudo pip install --upgrade numpy

Afterwards

brew list

was showing gfortran. I made sure I had the latest version by

brew update
brew upgrade

but

sudo pip install scipy 

was failing with a weird fortran error. Thus I uninstalled it and reinstalled it

sudo brew install gfortran
sudo brew uninstall gfortran

and to my great surprise

sudo pip install scipy 

worked after that.

Answer 6

Pip has difficulties with scipy on OS X in general. It is not trivial to install from the sources, so I advise against it. In OS X you have a few better options:

• Scipy superpack, a bunch of precompiled binaries
• Enthought Canopy (free or another) has already everything you'll need (numpy, scipy, matplotlib, etc.)
• Anaconda, a free scientific python distribution with probably all the packages you'll ever need.
• MacPorts, a comprehensive and flexible package manager that allows you to install and maintain a python distribution
• Homebrew, another popular package manager for OS X