[issue37941] python -m and runpy.run_module set different __name__ by default

[Nick Coghlan]

Nick Coghlan <ncoghlan at gmail.com> added the comment:

Yes, this is deliberate. From the run_module documentation: "__name__ is set to run_name if this optional argument is not None, to mod_name + '.__main__' if the named module is a package and to the mod_name argument otherwise."

This allows arbitrary code to be executed to populate a namespace, but you have to explicitly opt-in to having a second pseudo-__main__ module run in the same process (with all the potential pickle compatibility issues that doing so creates).

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resolution:  -> not a bug

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37941>
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