Clone this repo, then execute this workflow:
python3 -m venv venv
source venv/bin/activate
pip install pip==20.1.1
pip install pip-tools==5.2.1
pip-compile requirements.in > requirements.txt
pip install -e .
The last command will exit with this error:
error in pkg setup command: 'install_requires' must be a string or list of
strings containing valid project/version requirement specifiers; Invalid
requirement, parse error at "'+https:/'"
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check
the logs for full command output.
The same workflow with pip 20.0.2 works without errors.
The created requirements.txt includes
git+https://github.com/gtaylor/python-colormath.git@6cb12bf#egg=colormath@https://github.com/gtaylor/python-colormath/tarball/6cb12bf # via -r requirements.in
Compared to the requirements.in, the name colormath at the beginning was removed.
If I manually modify this line in requirements.txt to include the name
colormath @ git+https://github.com/gtaylor/python-colormath.git@6cb12bf#egg=colormath@https://github.com/gtaylor/python-colormath/tarball/6cb12bf # via -r requirements.in
then pip install -e . runs fine in pip 20.1.1 (and this still works with pip 20.0.2).
Does that mean that pip-compile should include the package name when generating a VCS-url requirement? Need to check PEP 440 and PEP 508