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[SPARK-55858][PYTHON][INFRA] Fix UDF logging tests under coverage #54649

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[SPARK-55858][PYTHON][INFRA] Fix UDF logging tests under coverage #54649

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5 changes: 5 additions & 0 deletions python/test_coverage/sitecustomize.py
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,11 @@ def wrapper(*args, **kwargs):
return wrapper

frame.f_globals["worker"] = save_when_exit(frame.f_globals["worker"])
# Pretend that this module has the same name as the worker module.
# UDF logging checks where pyspark code firstly calls into user code, and if
# the module name is "sitecustomize", it will confuse UDF logging and make
# it believe this is user code, which will result in a wrong context.
globals()["__name__"] = frame.f_globals.get("__name__", globals()["__name__"])

os.register_at_fork(after_in_child=patch_worker)

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