Multiple tests failing when invoked directly via ./python Lib/test/...

Besides test_pickle reported in #131031, there are a few more (test_regrtest, test_metaclass and test_pyclbr):

~ ./python Lib/test/test_regrtest.py
...
Ran 115 tests in 35.727s

FAILED (failures=1, skipped=2)

~ ./python Lib/test/test_metaclass.py
...
Ran 1 test in 0.018s

FAILED (failures=1)

~ ./python Lib/test/test_pyclbr.py
...
Ran 6 tests in 1.720s

FAILED (failures=1, errors=1)

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gh-131290: ensure that test files can be executed as standalone scripts #131371

Hello i would like to take for this

@MaximGit1

@MaximGit1 Thank you, please go ahead and ask any questions you have :)

Hello, I am currently running "Lib/test/test_metaclass.py".

Running it directly (./python Lib/test/test_metaclass.py) works in the global namespace (main), so module becomes 'main'. This creates a conflict since the module should be called "test.test_metaclass".

To fix this, I decided to do this.

if __name__ == "__main__":
    __name__ = "test.test_metaclass"  # predefined name
    unittest.main()

I think this is the best solution because I don't change the logic of the tests. How good do you think this solution is?

@sobolevn

@sobolevn I finished

For regrtest, I would prefer this fix:

diff --git a/Lib/test/test_regrtest.py b/Lib/test/test_regrtest.py
index 510c8f69631..7e317d5ab94 100644
--- a/Lib/test/test_regrtest.py
+++ b/Lib/test/test_regrtest.py
@@ -2546,4 +2546,5 @@ def test_test_result_get_state(self):
 
 
 if __name__ == '__main__':
+    setup.setup_process()
     unittest.main()

gh-131290: ensure that test files can be executed as standalone scrip…

@MaximGit1

Thank you @MaximGit1 for fixing this!

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Multiple tests failing when invoked directly via `./python Lib/test/...` #131290

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Multiple tests failing when invoked directly via ./python Lib/test/... #131290

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MaximGit1 commented on Mar 16, 2025

sobolevn commented on Mar 16, 2025

MaximGit1 commented on Mar 17, 2025

MaximGit1 commented on Mar 17, 2025

vstinner commented on Mar 17, 2025

Eclips4 commented on Apr 12, 2025

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Multiple tests failing when invoked directly via `./python Lib/test/...` #131290