[goodoldneon]

Pipenv or Poetry. Pip by itself is missing some key features, like separating dev dependencies (e.g. mypy)

[kmarc]

I think it's a pretty common pattern to use

    pip install -r requirements-dev.txt

Not the most convenient, but solves (works around) the issue

[goodoldneon]

Then you have to explicitly included all transitive dependencies for your dev dependencies, too. With Pipenv, only have to list your direct dev dependencies

[nerdponx]

These both use Pip internally. They are wrappers, not replacements.

[goodoldneon]

Right. I was replying to a comment that asks if there was anything that improves upon pip, which both Pipenv and Poetry do