[Postrelease-2.67] Remove mysql-connector-python dependency

[Abacn]

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[gemini-code-assist]

Summary of Changes

Hello @Abacn, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on streamlining the project's Python dependencies by removing the mysql-connector-python package. This change impacts the core test dependencies, as well as the build requirements for various Python container images. The rationale appears to be that this specific connector is no longer needed, especially where sqlalchemy is used with the pymysql dialect for MySQL connections, thereby reducing the overall dependency footprint and potential conflicts.

Highlights

• Dependency Removal from setup.py: The mysql-connector-python dependency has been removed from the main setup.py file, specifically from the BEAM_REQUIRED_TEST_PACKAGES list.
• Dependency Removal from Container Requirements: The mysql-connector-python dependency has been removed from all base_image_requirements.txt and ml_image_requirements.txt files across Python versions 3.9, 3.10, 3.11, and 3.12. This streamlines the build environments for various Python versions.
• Refactoring of MySQL Test Connections: The sdks/python/apache_beam/yaml/integration_tests.py file was updated to remove the direct import of mysql.connector and its associated error handling. The tests now solely rely on sqlalchemy with the pymysql dialect for MySQL interactions, indicating that mysql-connector-python was not necessary for these test cases.

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[Abacn]

R: @damccorm @derrickaw

cc: @kennknowles @Amar3tto

[github-actions]

Stopping reviewer notifications for this pull request: review requested by someone other than the bot, ceding control. If you'd like to restart, comment assign set of reviewers

[damccorm]

Thanks!

[Abacn]

apache_beam/yaml/integration_tests.py::RuninferenceTest::test_only - google.api_core.exceptions.PermissionDenied: 403 Tuned endpoint is blocked because publisher model `projects/844138762903/locations/us-central1/publishers/google/models/text-bison@001` 

outdated test;

ModuleNotFoundError: No module named 'transformers'

not related to the change

[codecov]

Codecov Report

❌ Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (release-2.67.0-postrelease@ab2b8d3). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
sdks/python/apache_beam/yaml/integration_tests.py	0.00%	5 Missing ⚠️

Additional details and impacted files

@@                      Coverage Diff                      @@
##             release-2.67.0-postrelease   #35933   +/-   ##
=============================================================
  Coverage                              ?   56.56%           
  Complexity                            ?     3381           
=============================================================
  Files                                 ?     1204           
  Lines                                 ?   183787           
  Branches                              ?     3490           
=============================================================
  Hits                                  ?   103965           
  Misses                                ?    76496           
  Partials                              ?     3326           

Flag	Coverage Δ
python	80.77% <0.00%> (?)

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[kennknowles]

I agree it is not related to this change. But it is a hard fail, so what is up with that?

[damccorm]

I agree it is not related to this change. But it is a hard fail, so what is up with that?

This also existed on the RC PR - #35795 (comment)

The underlying cause was pinning to incompatible dependency versions in our tests, and was fixed by #35819

We didn't cherry-pick the commit since it was test only and RC2 was otherwise ready (it would've been good to include that info on the PR though, that was a miss)