Only emit a metadata warning once

[uranusjr]

From #11352 (comment)

BTW, the warning is quite noisy:

[root@9a62f3789682 /]# mkdir -p /usr/lib64/python3.11/site-packages/mercurial-6.2-py3.11.egg-info
[root@9a62f3789682 /]# pip list
WARNING: Skipping /usr/lib64/python3.11/site-packages/mercurial-6.2-py3.11.egg-info due to invalid metadata entry 'name'
Package    Version
---------- --------
gpg        1.17.0
libcomps   0.1.18
pip        22.2.2
rpm        4.18.0b1
setuptools 62.6.0
WARNING: Skipping /usr/lib64/python3.11/site-packages/mercurial-6.2-py3.11.egg-info due to invalid metadata entry 'name'
WARNING: Skipping /usr/lib64/python3.11/site-packages/mercurial-6.2-py3.11.egg-info due to invalid metadata entry 'name'
WARNING: Skipping /usr/lib64/python3.11/site-packages/mercurial-6.2-py3.11.egg-info due to invalid metadata entry 'name'

Can this be improved with better caching? Or switching to use ResourceWarning?

[yaoyhu]

same here, any solution?

[yaoyhu]

same here, any solution?

rm -rf $NOISY_DIR_NAME

[uranusjr]

Feel free to contribute. I imagine this can be improved by caching the metadata-parsing function (that emits this message), or by maybe using warnings instead.

[yaoyhu]

Feel free to contribute. I imagine this can be improved by caching the metadata-parsing function (that emits this message), or by maybe using warnings instead.

I "fixed" this by finding the package and uninstalling it using pip. But it still gives warnings. So I rm -rf that dir and reinstall the package by pip. It works and has no harmful impact for now.

[huyz]

Why am I starting to get these warnings all the time over the past few months? Anyone know what changed? Often I get these warnings for Python packages installed by MacPorts

[yaoyhu]

Why am I starting to get these warnings all the time over the past few months? Anyone know what changed? Often I get these warnings for Python packages installed by MacPorts

The same issue can occur with Python packages installed via Homebrew. You can attempt to uninstall them using Macports/Homebrew and then reinstall them using pip. However, certain packages are necessary dependencies for software such as vim. Therefore, you will have to tolerate this situation for now.

[jwhendy]

For what it's worth as others stumble on this, I just pip uninstall [name] then pip install [name] and the errors went away. I did not have to rm -rf the directory.

I'd also like to understand why this just started out of the blue?

[itd]

In my recent homebrew build of python, it appeared to be specific to python3.12
I installed python3.11 and built the virtual environment with that (python3.11 -m venv venv)
Doing a pip install in this 3.11-based environment worked for me.