Pyinstaller seems to pull a pkg_resources deprecation warning.

[zapta]

When my pyinstaller app starts it prints the warning bellow but when I run it via python (no pyinstaller) it doesn't. It seems that pyinstaller itself pulls this deprecation error (see links below). Any suggestion on how to suppress it?

PyInstaller/loader/pyimod02_importers.py:450: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.

It seems that pyinstaller itself is causes this warning.

Here is uses requires and import altgraph:

pyinstaller/setup.cfg

Line 64 in 5369507

altgraph

pyinstaller/PyInstaller/lib/modulegraph/modulegraph.py

Line 35 in 5369507

from altgraph import GraphError

And here altgraph imports pkg_resources:
https://github.com/ronaldoussoren/altgraph/blob/fc154b550e516f159e20585a0adee82500204399/altgraph/__init__.py#L142

-------- Additional Info-----------

My pyinstaller config file:
https://github.com/zapta/apio-dev/blob/0b7a1f88aef001bd1e12bc2804f92e891e4d12f2/.github/workflows/resources/apio-pyinstaller.spec#L1

The pyinstaller build workflow:
https://github.com/zapta/apio-dev/blob/0b7a1f88aef001bd1e12bc2804f92e891e4d12f2/.github/workflows/build-darwin-arm64-installer.yml#L65

A full log of the workflow:
https://productionresultssa14.blob.core.windows.net/actions-results/8c11f28a-a714-4c61-9329-1b79694db497/workflow-job-run-1a7a147f-5f8d-5a77-81c4-7cb8dc411c41/logs/job/job-logs.txt?rsct=text%2Fplain&se=2025-05-27T21%3A46%3A37Z&sig=Oo9Qjs94LotXZ6b%2Fui27P5rO9kp1%2BjmTTVZM1bdC22Q%3D&ske=2025-05-28T07%3A16%3A01Z&skoid=ca7593d4-ee42-46cd-af88-8b886a2f84eb&sks=b&skt=2025-05-27T19%3A16%3A01Z&sktid=398a6654-997b-47e9-b12b-9515b896b4de&skv=2025-05-05&sp=r&spr=https&sr=b&st=2025-05-27T21%3A36%3A32Z&sv=2025-05-05

[rokm]

Any suggestion on how to suppress it?

Try adding --exclude-module pkg_resources to your PyInstaller command - that should prevent the package (and the run-time hook for it) from being collected. If your unfrozen application does not trigger the deprecation warning, chances are that the package is not really used in any other place than in our run-time hook.

[zapta]

Thanks @rokm, I add it to the .spec file and the warning is gone. Haven't notice an issue with my app yet.

https://github.com/zapta/apio-dev/blob/ee01a299bcf63068a78aca462a06e453603e2209/.github/workflows/resources/apio-pyinstaller.spec#L26

[numbworks]

@rokm
I had the same error message when running an executable created by PyInstaller on Windows:

Name: pyinstaller
Version: 6.11.1

Name: setuptools
Version: 80.9.0

Adding the --exclude-module pkg_resources flag solved the problem!

Thank you for sharing!