gh-62824: Adjust test_alias_modules_exist test to allow .pyc codec files

[hroncok]

In Fedora, we install many codecs as .pyc files to save space.

This test was failing when running from installed Python:

======================================================================
FAIL: test_alias_modules_exist (test.test_codecs.TransformCodecTest.test_alias_modules_exist)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python3.14/test/test_codecs.py", line 3115, in test_alias_modules_exist
    self.assertTrue(os.path.isfile(codec_file),
    ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    "Codec file not found: " + codec_file)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: False is not true : Codec file not found: /usr/lib64/python3.14/encodings/cp037.py

----------------------------------------------------------------------

• Issue: Add alias for iso-8859-8-i which is the same as iso-8859-8 #62824

[malemburg]

I think it would be better to not go look for module files (they can also be frozen or in a ZIP file), but instead try to import them.

[hroncok]

I think it would be better to not go look for module files (they can also be frozen or in a ZIP file), but instead try to import them.

Indeed. I added a commit to switch to importlib.util.find_spec("encodings.xxx")

[malemburg]

Do you want to add a news entry or should we skip this ?

[hroncok]

I assumed this is a skip news material.

[malemburg]

I added the label, but the branch is out of date. Could you please rebase it ?

[malemburg]

Ah, all good now.

[malemburg]

Thanks for the fix, @hroncok

[hroncok]

Can we get a backport for 3.14 please?

[miss-islington-app]

Thanks @hroncok for the PR, and @malemburg for merging it 🌮🎉.. I'm working now to backport this PR to: 3.14.
🐍🍒⛏🤖

[bedevere-app]

GH-134781 is a backport of this pull request to the 3.14 branch.