On 15-08-18 04:10 PM, Albert-Jan Roskam wrote:
Hi,
I use Python(x y) (Python 2.7) on Win7. I need a higher version of openpyxl, because pandas.Dataframe.to_excel yields an error. So pandas and its own dependencies (e.g. numpy) could remain in the python(x y) site-packages, I just need a higher version of openpyxl without disturbing the x,y installation (I do not even have rights to install stuff there!) So I would like to pip install a openpyxl AND its specific dependencies in a virtualenv.
The problem is that I can't use pip to download the packages from Pypi because 
I do not have a regular internet connection. Is there a generic way to install 
a package and its (pre-downloaded) dependencies, a way that requires little or 
no modifications to the original package?
Using pip 'editable' might help: 
http://stackoverflow.com/questions/15031694/installing-python-packages-from-local-file-system-folder-with-pip.
 I am hoping requirements.txt might somehow be used to install the dependencies 
from a local location --but how?

To install without going out to the internet, you can use these arguments:

pip install --no-index --find-links=/path/to/download/directory <packages>

that *won't* work for git/svn/bzr linked (editable) packages, but should work for pre-downloaded "released" packages. If you need the editable packages, you'll need to pull the git/whatever repositories and modify your requirements file to point to the local git repo. But you likely could just do a "python setup.py develop" for them if you've got the source downloaded anyway.

I often use this with a separate "download dependencies" stage that populates the packages directory so that our build server doesn't hit PyPi every time we do a rebuild of our virtualenvs (which we do for every testing build).

HTH,
Mike

--
________________________________________________
  Mike C. Fletcher
  Designer, VR Plumber, Coder
  http://www.vrplumber.com
  http://blog.vrplumber.com

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