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Showing content from https://mail.python.org/pipermail/python-dev/2001-October/017672.html below:

[Python-Dev] Python 2.2a* getattr suggestion and question

[Python-Dev] Python 2.2a* getattr suggestion and questionJeff Epler jepler@inetnebr.com
Mon, 1 Oct 2001 09:00:29 -0500
On Sun, Sep 30, 2001 at 02:37:00PM -0400, Guido van Rossum wrote:
> > Sure. Still, I think interpreter diagnostics should be pointing to the
> > exact place of trouble. At least, __getattribute__ must appear somewhere
> > in the traceback to give a hint where from __repr__ was attempted to be
> > called.
> 
> When you write a faulty __getattribute__ that returns None instead of
> raising AttributeError, it's not realistic to expect __getattribute__
> to be in the stack trace.

PyChecker might want to give an error if flow in __getattr[ibute]__
doesn't either pass through a return or a 'raise AttributeError'.
Even if the intent is to have attributes default to None, an explicit
'return None' could be added.

Jeff



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