[issue30891] Sometimes, test_concurrency() of test_import fails with AttributeError: module 'package' has no attribute 'submodule' on AMD64 Windows8.1 Refleaks 3.6

[Nick Coghlan]

Nick Coghlan added the comment:

Indeed, Serhiy's been stress-testing some bits of the import system, and finding a few holes made possible by the shift away from a single global import lock to per-module locks. (Issue 30876 is another example of that)

Nothing immediately comes to mind as a platform-dependent code path that could explain why that error is showing up on Windows and not on Linux, though.

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stage:  -> needs patch
type:  -> behavior

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30891>
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