The title of this bug report is misleading, the problem has nothing to do with pip. It's a problem with virtualenv for Debian based systems with Python 2.7 (see https://github.com/pypa/virtualenv/issues/118).
A workaround Activate the virtualenv mkdir $VIRTUAL_ENV/local ln -s $VIRTUAL_ENV/lib $VIRTUAL_ENV/local/lib Install Numpy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/780220 Title: pip install numpy fail in virtualenv -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs