Max R

The tox docs step fails with ``` ERROR: InvocationError for command /home/runner/work/pytest/pytest/.tox/docs/bin/sphinx-build -W --keep-going -b html doc/en doc/en/_build/html -t changelog_towncrier_draft (exited with code 1) ``` I think this is from...

Something similar is done for OSError aliases so perhaps that code can be adapted for this issue too. https://github.com/asottile/pyupgrade/blob/53c94718aae4074edde7099996c81ab7cc081ce3/pyupgrade/_plugins/oserror_aliases.py#L43

There is some code (specifically install-local.py) that could be vendored, modified, etc. Does that count?

Is there anywhere I can learn more about the differences between `--headless` and `--headless=chrome`, specifically performance differences? I was only able to find [these docs](https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md) which don't mention `--headless=chrome`

Thanks!

The behavior repros when `--min-py3-version` is not passed too and a default is used for `min_py3_version`. So should the fix change the parsing code to determine when absolutely nothing is...

Going to try to get a PR for this out this week

Working on this and the behavior I'm writing is "set python_requires to whatever the minimum is after ingesting all sources (tox envlist, python_requires in setup.cfg, min_py3_version flag, etc)" but I...

So I realized from the `test_min_py3_version_updates_python_requires` test that `min_py3_version` should only override `python_requires` when py27 is not supported in `python_requires`, which makes the implementation more complicated. Wdyt about `min_py3_version` being...

sg