tell pip to install the dependencies of packages listed in a requirement file
pip, python, requirements.txt
Solution
Given your comment to the question (where you say that executing the install for a single package works as expected), I would suggest looping over your requirement file. In bash:
#!/bin/sh
while read p; do
pip install $p
done < requirements.pip
HTH!
Problem
Developing a Django web app, I have a list of packages I need to install in a virtualenv. Say: ``` Django==1.3.1 --extra-index-url=http://dist.pinaxproject.com/dev/ Pinax==0.9b1.dev10 git+git://github.com/pinax/pinax-theme-bootstrap.git@cff4f5bbe9f87f0c67ee9ada9aa8ae82978f9890 # and other packages ``` Initially I installed them manually, one by one, along the development. This installed the required dependencies and I finally used `pip freeze` before deploying the app. Problem is, as I upgraded some packages, some dependencies are no longer used nor required but they keep being listed by `pip freeze`. Now, I'd like to set up a new virtualenv this way: - put the needed packages (without their dependencies) in a requirement file, like `manual-requirements.txt` - install them with their dependencies `pip install -r manual-requirement.txt` (← problem, this does not install the dependencies) - freeze the full virtualenv `pip freeze -r manual-requirements.txt > full-requirements.txt` and deploy. Any way to do this without manually re-installing the packages in a new virtualenv to get their dependencies ? This would be error-prone and I'd like to automate the process of cleaning the virtualenv from no-longer-needed old dependencies. edit: actually, pip does install dependencies not explicitly listed in the requirement file, even if the documentation tells us that such files are flat. I was wrong about which dependencies i expected to be installed. I'll let this question for anyone in doubt about pip not installing all dependencies.