When you run ./python.exe -OO -m test MODULE_NAME at least these ones fail:

8 tests failed:
    test.test_pydoc.test_pydoc test_ast test_builtin test_compile
    test_dis test_generated_cases test_interpreters test_remote_pdb

In my opinion it would be easier to contribute one test fix at a time. Rebases and reviews will be simplier. So, contributions are welcome!

I will create a single PR just to show how this can be solved for new contributors.

• test.test_pydoc.test_pydoc
• test_ast
• test_builtin, @sobolevn
• test_compile
• test_dis
• test_generated_cases
• test_interpreters
• test_remote_pdb

Linked PRs

• gh-136438: Make sure test_builtins pass with all optimization levels #136474
• gh-136438: Make sure test_compile pass with all optimization levels #136478
• gh-136438: Make sure test.test_pydoc.test_pydoc pass with all optimization levels #136479
• [3.14] gh-136438: Make sure test_builtins pass with all optimization levels (GH-136474) #136496
• gh-136438: Make sure test_interpreters pass with all optimization levels #136499
• [3.13] gh-136438: Make sure test_builtins pass with all optimization levels (GH-136474) #136502
• gh-136438: Make sure test_dis pass with all optimization levels #136593
• gh-136438: Make sure test_generated_cases pass with all optimization levels #136594
• gh-136438: Make sure test_ast pass with all optimization levels #136596