Poetry solves a lot of these problems; though not the test or lint command. For example, no more messing around with virtualenvs, sensibly declare normal and dev dependencies.

The commands are useful, getting support for declaring easy to use test and lint commands in pyproject.toml shouldn't be so hard and something I'd love to see. In the meantime, you can use shell scripts (or a makefile sans the venv stuff) and do e.g. `poetry run ./test`.

Tbh, there's nothing wrong with a makefile, and poetry isn't perfect. I just feel poetry works better than trying to work around the limitation of existing tooling. An so far, I'm happy with pyproject.toml. Putting dev tool configuration in there is a lot nicer than having several different files with different syntax for e.g. isort, pylint, etc