Another alternative is to download the file with
apt-get download, extract it with
dpkg -x and to move the extracted files to your virtualenv:
apt-get download python-xyz
assume this results in:
Then, use dpkg to extract the data portion of the .deb file:
dpkg -x python-xyz_1.2.3-3ubuntu5_amd64.deb ./xyz-tmp
In the newly created
./xyz-tmp directory, you now have all files that would have been installed to
/ (root) had you used
Assume they are:
You still need to map the subdirectories (e.g.
site-packages), and can then move the files into your virtualenv (assuming a virtualenv
mv ./xyz-tmp/usr/lib/python2.7/dist-packages/* /home/user/.virtualenvs/py27/lib/python2.7/site-packages/
Compared to my previous answer, this approach has the advantage that you don't have to research which files got installed, because you can see them in the extraction directory. It still requires a mapping of directories between the extracted archive and the virtualenv.