[issue19185] Allow multiprocessing Pool initializer to return values

[Richard Oudkerk]

Richard Oudkerk added the comment:

> These functions are compliant with POSIX standards and the return values 
> are actually useful, they return the previously set masks and handlers, 
> often are ignored but in complex cases it's good to know their previous 
> state.

Yes.  But my point was that somebody might have used such a function as the initializer argument.  The proposed change would break a program which does

    with Pool(initializer=os.nice, initargs=(incr,)) as p:
        ...

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19185>
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