How to use setup.py to install dependencies only?

Question

I am not interested in installing my package itself but I am interested installing all the dependencies used by my package. Is there a way to do this using setup.py

Answer 1

Use the -e flag on pip install

pip install -e .

Answer 2

The only way I've found to reliably do this in a straightforward manner is this:

pip install . && pip uninstall `python setup.py --name`