[issue25452] Add __bool__() method to subprocess.CompletedProcess

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

I'm not sure that it is worth to implement the __bool__() method. This doesn't add much in comparison with checking the returncode attribute.

The change can break existing code that uses boolean testing instead of checking for None.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25452>
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