Enable a .venv export that includes -e installed development packages

[SimonBiggs]

I am trying to use the .venv created by pants as a Jupyter Kernel by running:

python -m ipykernel install --user --name monorepo

And then using that kernel within Jupyter Lab.

However, the packages I am currently working on are not included within the exported venv which I create by calling:

pants export --resolve=python-default

As such, I am currently activating the venv, and then manually installing each of my packages within my monorepo with the pip install -e approach.

Ideally, we could export a standard .venv for use with IDEs and Jupyter that is simple, standard, and includes each of our packages installed via -e with pip.

[huonw]

I think this might be (partly?) fixed by #18639, for python_distribution targets, via a [export].py_editables_in_resolves option. Could you confirm, @cognifloyd?

[cognifloyd]

Yes. This request is explicitly for "development packages", which is represented in pants via python_distribution BUILD targets. So, yes, #18639 resolves this issue. That feature should be released with pants 2.17 😁

[cognifloyd]

Fixed by #18639.

@SimonBiggs When you upgrade to 2.17, please circle back to let me know about your experience using [export].py_editables_in_resolves. Thanks!

[SimonBiggs]

When you upgrade to 2.17, please circle back to let me

Absolutely! Will do. Thanks @cognifloyd 🙂