[3.15] gh-123011: Fix warn_explicit() with the globals of the __main__ module (GH-155318) - #155989
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[3.15] gh-123011: Fix warn_explicit() with the globals of the __main__ module (GH-155318)#155989miss-islington wants to merge 1 commit into
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… module (pythonGH-155318) The __main__ module executed as a script or a command has __spec__ set to None, so warn_explicit(module_globals=globals()) emitted a spurious DeprecationWarning. It also raised ImportError when the loader was unable to provide the source of the module: when the module was executed with -m (the loader can only handle its own module name) or as a command (the built-in importer has no source). (cherry picked from commit f2eaf17) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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ericsnowcurrently,
ncoghlan and
warsaw
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August 18, 2026 07:29
This was referenced Aug 18, 2026
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The main module executed as a script or a command has spec set to
None, so warn_explicit(module_globals=globals()) emitted a spurious
DeprecationWarning. It also raised ImportError when the loader was unable
to provide the source of the module: when the module was executed with -m
(the loader can only handle its own module name) or as a command (the
built-in importer has no source).
(cherry picked from commit f2eaf17)
Co-authored-by: Serhiy Storchaka storchaka@gmail.com