Replace pipenv

[veit]

Since pipenv doesn’t seem to be further developed (see If this project is dead, just tell us #4058 it’s time to look around for alternatives.

• pip-tools for dependency management including automation of updates.
• venv, possibly supplemented by pex or shiv.
• pipdeptree print the dependency tree of the installed packages

Unfortunately, Poetry can’t install packages along with their dependencies in an explicitly specified virtual environment. However, this makes CI much easier.

[b0g3r]

Poetry can install packages to existing venv: just activate it and try poetry install

Also, you can explicitly configure poetry to use your venv, or to use system wide python, see https://python-poetry.org/docs/configuration/ (virtualenvs.* params)

[veit]

@b0g3r: I know, but that’s not suitable for build servers and in CI.

[b0g3r]

Why? We use poetry for installing project dependencies to system-wide python as described here:
https://python-poetry.org/docs/managing-environments/#switching-between-environments

[veit]

However, I need the ability to install the current package along with its dependencies in a specific environment that I can completely specify, including architecture and compilers.

[orsinium]

DepHell can print dependencies tree and manage virtual environments:

• https://dephell.org/docs/cmd-deps-tree.html
• https://dephell.org/docs/cmd-venv-create.html

[veit]

Hi @orsinium, thank you for the hint. It’s an Interesting project, but unfortunately I still need Python2 support: many research institutes I know still have legacy Python2 projects.