On 6 Nov 2014 06:53, "Alexander Belopolsky" <[email protected]> wrote: > > > On Wed, Nov 5, 2014 at 2:47 PM, R. David Murray <[email protected]> wrote: >> >> As I said on the issue, there is no reason I can see to add extra code >> just to turn an AttributeError into a TypeError. The AttributeError >> works just fine in letting you know your input type didn't work. > > > +1 > > Unlike ValueError or LookupError, TypeError and AttributeError indicate a logical problem with the code rather than an issue with the user input. >From the programmer perspective, any code that catches and mutates exceptions is a nuisance.
Right. Especially in a ducktyping context, AttributeError and TypeError are often functionally equivalent - it usually isn't worthwhile adding code specifically to turn one into the other. The case that doesn't throw an exception at all seems a little strange, but I haven't looked into the details. Regards, Nick. > > _______________________________________________ > Python-Dev mailing list > [email protected] > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: https://mail.python.org/mailman/options/python-dev/ncoghlan%40gmail.com >
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