[docs] [issue21791] Proper return status of os.WNOHANG is not always (0, 0)

[Eric Radman]

Eric Radman added the comment:

Thanks for posting some simple examples. 

Here is the commit that I wrote to solve this problem when I encountered it in the wild:

https://bitbucket.org/tk0miya/testing.postgresql/commits/3f145860cfd91e3f03f24b87c4b3b41c3a974037

Closing since I am also not able to reproduce this using a simple example.

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resolution:  -> works for me
status: pending -> closed

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