How to specify install order for python pip?

You can just use:

cat requirements.txt | xargs pip install

python pip virtualenv requirements.txt

To allow all types of entries (for example packages from git repositories) in requirements.txt you need to use the following set of commands

cat requirements.txt | xargs -n 1 -L 1 pip install

-n 1 and -L 1 options are necessary to install packages one by one and treat every line in the requirements.txt file as a separate item.

python pip virtualenv requirements.txt

This is a silly hack, but might just work. Write a bash script that reads from your requirements file line by line and runs the pip command on it.

#!/bin/bashfor line in $(cat requirements.txt)do  pip install $line -E /path/to/virtualenvdone

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