[Python-Dev] Details of "import lock" in 3.3

[Jesus Cea]

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On 06/09/13 17:43, Antoine Pitrou wrote:
> Quick summary here: 
> http://docs.python.org/3/whatsnew/3.3.html#a-finer-grained-import-lock
>
>  Otherwise, I'm afraid the source code has the most information,
> e.g.: 
> http://hg.python.org/cpython/file/1d88d04aade2/Lib/importlib/_bootstrap.py#l124

Yes,
> 
I was depending of the global import lock in my code. I am
evaluating impact under Python 3.3.

Under Python 3.3, metafinder/loader MUST BE reentrant?.

Can they count on the fact that they could be called concurrently by
multiple threads but NOT for importing the SAME module?.

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