Document env var style

Question

Closed this issue 8 months ago · 3 comments

In https://discuss.python.org/t/change-environment-variable-style/35180 we decided to use underscores in new environment variable names introduced in Python 3.13+.

For example, PYTHON_CPU_COUNT instead of PYTHONCPUCOUNT.

Let's document it somewhere in the devguide.

Answer 1 · 2024-03-25T20:03:44.000Z

Please see PR #1300.

Answer 2 · 2024-03-26T11:38:43.000Z

Are there any mechanisms in place to e.g. ignore the _s so that both PYTHON_CPU_COUNT and PYTHONCPUCOUNT work?

Answer 3 · 2024-03-26T11:47:17.000Z

Inside Python? Maybe, but we'd need to decide what to do when both exist, with different values, which could be set by different groups. Who wins? See https://discuss.python.org/t/change-environment-variable-style/35180/7, and the Discourse thread is the place to discuss this :)