Install python-numpy in the Virtualenv environment

Question

I would like to install the python-numpy in the Virtualenv environment. My system is Ubuntu 12.04, and my python is 2.7.5. First I installed the Virtualenv by

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Answer 1

meddling with PYTHONPATH for site-packages indeed defeats the purpose of virtalenv. what worked for me was to specify the env i wanted the packages to be installed in via pip

example:

pip -E /home/proj1 

where proj1 was created using virtualenv.

reference: how to install numpy in a virtualenv