How can I install numpy in virtualenv...
easy_install numpy is throwing error.. I can not use the binary installer because this would install numpy in the python main installation and not in virtualenv..
Thanks
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see stackoverflow.com/questions/6114115/…Josef– Josef2012-10-14 23:24:34 +00:00Commented Oct 14, 2012 at 23:24
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2 Answers
Another (not so great) solution is to get the installer, install it into your default Python directory, then copy it over to your virtualenv manually.
Long version
- Go here: http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy
- Install it.
- Find it in your python installation (probably at C:\Python27\Lib\site_packages\numpy, or similar
- Copy the numpy directory over to $virtual_env\Lib\sites_packages\numpy.
Worked for me, but it's not elegant. I think there are also exe installers on numpy's site, but I find it's easier to just go to the one above when I need things than to poke around on various other sites.
1 Comment
Joop
Worked. not elegent though... pip does not see the numpy install so it is not listed in the pip freeze
You cannot use easy_install directly for fairly technical reasons I would rather not get into. There is a solution, albeit not optimal: once in the virtual environment, go into numpy sources, and run:
python setupegg.py install
The key point is using setupegg.py instead of setup.py.
4 Comments
mlissner
Hrm, doesn't work for me. Says:
No module named msvccompiler in numpy.distutils; trying from distutils. error: Unable to find vcvarsall.bat
David Cournapeau
Do you have visual studio installed ?
mlissner
Nope...that a dependency for numpy on Windows?
David Cournapeau
you need a C compiler, yes. Either visual studio, or mingw32 (in which case you need to call something like seutpegg build_ext -c mingw32). But really, you should just install numpy from binaries.