Install dependencies that aren't in PyPI

[rodrigomologni]

Hello!

I would like to install dependencies that aren't in PyPI. I wrote the setup.cfg in two ways:

install_requires =
    mypackage*.whl

install_requires =
    mypackage
dependency_links = git+ssh://git@github.com/.../mypackage.git

Both scripts produce the following error:

$ pip install -e .
Obtaining file:///.../my2ndpackage
  Installing build dependencies ... done
  Checking if build backend supports build_editable ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
ERROR: Could not find a version that satisfies the requirement mypackage (from my2ndpackage) (from versions: none)
ERROR: No matching distribution found for mypackage

However, installation via pip works:

pip install mypackage*.whl
pip install git+ssh://git@github.com/.../mypackage.git

[webknjaz]

dependency_links has been deprecated long ago. Distribution packages only declare the dependency specifications, not the indexes. Also, this problem can be solved on the pip level with requirements files.
Perhaps https://packaging.python.org/en/latest/discussions/install-requires-vs-requirements/ and https://caremad.io/posts/2013/07/setup-vs-requirement/ will help you understand why it has to work this way.

[rodrigomologni]

Thank you very much, @webknjaz! :-)