python - Numpy build fails with cannot import multiarray

19
votes

I'm using homebrew python on Mavericks, trying to build numpy 1.8. Unfortunately, when I try to install numpy, I get the following error: https://gist.github.com/ngoldbaum/8592039

I'm able to build numpy 1.7.2 with pip install numpy==1.7.2, but numpy 1.8 always fails to build with the same traceback.

4
pythonmacospython-2.7numpyhomebrew
Maybe it's conflict with your system environment. Try to install numpy in the virtualenv - waitingkuo
It seems I'm able to build numpy in a virtualenv. Any idea how I can track down what's causing the conflict in my system environment? - ngoldbaum

4 Answers

35
votes

on Mac:

1.) remove these 2 folders manually:

rm -rf /usr/local/lib/python2.7/site-packages/numpy/
rm -rf /usr/local/lib/python2.7/site-packages/numpy-1.10.4.dist-info/

notice: pip uninstall numpy didn't work for me, I had to remove numpy manually.

2.) re-install numpy: pip install numpy

3
votes

This was solved by doing brew uninstall python, deleting the contents of /usr/local/lib/python2.7/site-packages, reinstalling python, and then rebuilding numpy.

0
votes

I solved my issue doing this: Python.exe .\lib\site-packages\easy_install.py

0
votes

I solved it by uninstalling numpy and reinstalling numpy using pip -

pip3 uninstall numpy

pip3 install numpy