pip freeze of editable does not point to project location when using src layout

[sbidoul]

Description

This is something I (re)discovered while working on making pip list and pip freeze support PEP 610 for modern editables.

Assume a setuptools project using the src layout, without VCS, and installed in editable mode.

Running pip freeze will output the parent directory of the .egg-info directory, which is the src directory and not where setup.py is located, making reinstallation from the frozen requirement impossible.

This is fixable in principle because the .egg-link file contains a second line pointing to the setup.py directory.

I'm not sure this is something we will want to fix, but I report it for the record and discussion in case anyone has an any insight on the matter.

Expected behavior

No response

pip version

latest and probably all

Python version

3

OS

any

How to Reproduce

Assuming this setup.py:

from setuptools import setup

setup(
    name="pkga",
    packages=["pkga"],
    package_dir={"": "src"},
)

Run pip install -e ., followed by pip freeze. Notice that the directory produced by pip freeze does not point to the setup.py directory but to the src directory.

Output

No response

Code of Conduct

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