[issue1590864] import deadlocks when using PyObjC threads

[Brett Cannon]

Brett Cannon <brett at python.org> added the comment:

First, because os is such a common module that hiding some uncommon
imports at the module level helps with startup costs.

Second, this is not a bug as the code is not behaving in an improper
manner. The import lock is doing what it is supposed to be doing and
importing at the module level is still okay.

You can open the issue again if you want, but I think this is not worth
changing.

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assignee: brett.cannon -> 

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