pip-compile for setup.py's install_requires instead of requirements.txt

Question

pip-compile enables traceability in pinning requirements inside a requirements.txt with an external requirements.in. I really like this

My question is, can we somehow do the same, but for an install_requires list inside setup.py?

In other words, if I don't have a requirements.txt but instead just a setup.py, is it possible to use pip-compile?

Generate `requirements.txt` and read it in `setup.py`. You can do simple reaing like [this](https://stackoverflow.com/a/50931854/7976758) or you can do more complex [parsing](https://stackoverflow.com/a/59971236/7976758). — phd, Jun 21 '22 at 17:57
@phd A best practice question here... would it be better to (a) generate requirements.txt from `install_requires` in setup.py, or (b) parse requirements.txt to generate `install_requires` list in setup.py ? — jacaheyo, Sep 14 '22 at 09:58
@jacaheyo How you gonna automatically generate `requirements.txt` from `install_requires`? — phd, Sep 14 '22 at 11:59

score 2 · Accepted Answer · edited Jan 19 '23 at 17:32

2

Yes, pip-tools supports pyproject.toml, setup.cfg, and setup.py configuration files from version 6.1.0 (2021-04-14).

You should just run:

pip-compile -o requirements.txt YOUR_CONFIG_FILE
# where YOUR_CONFIG_FILE can be a setup.py
# or even simpler
pip-compile YOUR_CONFIG_FILE

Take a look at the documentation:

edited Jan 19 '23 at 17:32

answered Jan 19 '23 at 05:16

wankata

How would you compile from a `setup.py`/`.cfg`? I don't think that's actually supported – Intrastellar Explorer Jan 19 '23 at 05:33
1

I've edited my answer with links to the documentation. – wankata Jan 19 '23 at 06:35

1 Answers1