[issue4188] Lib/threading.py causes infinite recursion when running as verbose

[R. David Murray]

R. David Murray <rdmurray at bitdance.com> added the comment:

I can confirm that the patch fixes the recursion problem if threading._VERBOSE is set to true, but the test Antoine mentioned hangs when the test suite is run.

_VERBOSE is an internal, undocumented facility, so perhaps the priority on this isn't really "high".

On the other hand, Antoine's patch takes things from non-functional to at least partially functional, so perhaps it is worth applying as is, pending someone figuring out where the test hang is coming from.

I looked in to this briefly, but I have no clue how to trigger this in a unit test, since it seems to happen when regrtest imports logging which imports threading, and appears to my threading-ignorant eyes to be tied to conditions that only exist at initial module import.

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nosy: +r.david.murray
versions:  -Python 2.6

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