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[15:07:03] <mrquincy> I'm learning basic python packaging in order to contribute to an established project. I'm confused about interactions between pip and setuptools. When I "pip install -e <DIR>" inside a virtual env, I don't see where things are actually installed.

[15:07:21] <mrquincy> I see the script I expect in my virtualenv path, but it just sets an entry point and exits.

[15:07:46] <mrquincy> There's a related file in lib/.../site-packages/, but it's just an egg link to the "." directory.

[15:08:14] <mrquincy> Is there some reading you all can suggest based on my misunderstandings?

[15:10:23] <mgedmin> mrquincy: https://setuptools.readthedocs.io/en/latest/setuptools.html#development-mode

[15:10:45] <mrquincy> I'm on it. Thank you.

[15:11:39] <mgedmin> .pth files are documented in https://docs.python.org/3.7/library/site.html

[15:12:18] <mgedmin> I don't remember if pip install -e runs actually python setup.py develop or if it does the equivalent all by itself

[15:12:31] <mgedmin> but yeah, editable installs == wrapper scripts + one pth file

[15:15:33] <mrquincy> Got it.

[15:20:25] <mrquincy> So it doesn't actually install "the business", it just links to the install dir passed to pip with the -e option

[15:20:28] <mgedmin> https://pip.pypa.io/en/stable/reference/pip_install/#editable-installs links to the setuptools docs

[15:20:43] <mgedmin> yeah, the whole point of an editable install is to avoid making a copy of the source

[15:20:58] <mgedmin> so you can edit and run the new code immediately without an intermediate reinstall/update step

[15:22:20] <mrquincy> Gotcha. I was getting nervous because I was changing code and installing, but nothing would happen. Makes sense now.

[15:26:51] <mgedmin> (there's one exception: if you change the version number in your setup.py, editable installs might break and you'll need to repeat the pip install -e)

[16:30:11] <mrquincy> cool! I made a branch of the project and I'm happy with the result. Submitted a PR, but I want to make this thing available to users immediately.

[16:31:11] <mrquincy> I know I've used 'pip install thing==version' before. Is it possible to submit my own version tag to Pypi, or do I need to submit a totally new package with a different name

[16:32:05] <mgedmin> users can pip install from git repositories

[16:32:28] <mgedmin> https://stackoverflow.com/a/20101940

[16:35:12] <ngoldbaum> you can tell people to git install from your branch on your repo

[16:35:17] <ngoldbaum> err, pip install

[16:37:43] <mrquincy> Perfect. thanks

[16:39:26] <mrquincy> I assume I could replace branch with commit id as well? This branch could be a moving target

[17:10:03] <ngoldbaum> yes

[18:24:49] <mrquincy> ngoldbaum: Thanks, I'm most of the way there. However, the setup.py file isn't in the git repo root, it's in a subdirectory. Is there a way I can force it to check the subdir?