pip-compile suffix numpy with +mkl

[ingolfured]

I currently have a setup.cfg with numpy==1.19.5 as dependency. When I rebuild a requirements.txt using pip-compile on Windows 10, it adds a line numpy==1.19.5+mkl which later on can't be found by my Linux Jenkins instance. How can I tell pip-compile to stop adding +mkl as a suffix to the version?

Thanks
Ingo

Environment Versions

1. Windows 10 (when run pip-compile) but Linux (when run pip-sync)
2. Python version: Python 3.6
3. pip version: 21.2.2
4. pip-tools version: 6.2.0

Steps to replicate

1. Have a setup.cfg with a

[options]
install_requires =
    numpy==1.19.5

2. run pip-compile
3. Have a look at your requirements.txt for a line numpy==1.19.5+mkl `

Expected result

It should be numpy==1.19.5

Actual result

numpy==1.19.5+mkl

[1oglop1]

I'd say you do not want to run pip-compile on your windows machine. Just make pip-compile as part of your CI job instead

[AndydeCleyre]

Yeah, the current intended behavior is that pip-compile is run on the target environment.

See #585 (comment), and we have at least these two open issues regarding multi-environment ideas:

• Merge constraint contents for different envs #826
• multiple pip-compile runs with multiple python versions -> single requirements.txt #1326

So I think @1oglop1 has the immediate solution to your problem, and if that's not satisfactory check if the linked issues fit.

[AndydeCleyre]

@ingolfured

It's been about a month, and AFAICT this is working as intended, so I'm closing the issue, but please write back if there's more to add here. Thanks!