CODEWITHSUNDEEP
pythonmacosnumpyinstallation
Paul Avery
Paul Avery

Reputation: 117

Installing numpy from

(I looked at many answers on here but similar questions were not answered or didn't address my question).

I use numpy + scipy + matplotlib on Mac-OSX 10.8.5. I have numpy 1.6.1 on my machine and using python 2.7.5 in /System/Library/Frameworks/Python.framework/Versions/2.7/. I've been running with that configuration for several months running from Idle or the command line.

I just upgraded to matplotlib 1.3.1 from the .dmg file at Sourceforge. The install worked fine and I can see the correct version in matplotlib.__version__. However, I cannot use it because it claims I need numpy 1.7 or higher. So I downloaded the numpy-1.8.0 dmg file from Sourceforge and installed it using the Mac installer. The installer claims to have done it correctly, but numpy.__version__ is still 1.6.1!!! I've done the installation multiple times (each time successfully according to the Mac installer) with the same result.

I had no problem upgrading matplotlib to 1.3.1 and scipy to 0.13 using their respective .dmg files at Sourceforge. I don't see why numpy should not install the same way. I must have upgraded it the same way in the past, but I can't remember.

I run Python from Idle as well as from the command line and don't want to go to some other distribution like Macports, etc. I've been using Python this way for 4 years and don't understand why numpy is not being updated. Thanks for any help.

Upvotes: 1

Views: 1759

Answers (1)

askewchan
askewchan

Reputation: 46578

Three solutions, one is the one given in my comment, but an easier one might be to change your PYTHONPATH. On the command line:

export PYTHONPATH=/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/:$PYTHONPATH

To make the change permanent, put that line in your 

~/.bashrc

file.

From my comment:
I'm not sure how dangerous it is, but to just move the installation to be with your others, you could try

mv /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/n‌​umpy/ /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/n‌​umpy_old/
cp /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/nump‌​‌​y/ /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/n‌​umpy/

Finally, you could try using pip to install numpy. To see where pip is installed, type this in terminal:

which pip

If it's where you want it to be (/Library/...), then all you have to do is

pip install numpy

Upvotes: 1

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