[Python-Dev] Dict suppressing exceptions

["Martin v. Löwis"]

Jim Jewett schrieb:
> hash was just changed to support the common use of id, even though
> some people argued it was *really* a bug in the classes themselves.
> This is a similar situation.

Similar still different. In the case of __hash__ returning id(),
it is very clear what the intention of the program is, and it is
implementable to give the program its intended meaning (i.e.
use the object address as the source of the hash value).

In this case, it is not clear what the intention of the program is.
__cmp__ raises an exception, and you say the intention is that this
exception should be discarded? Errors should never pass silently,
unless explicitly silenced.

Some users will find "Oops, I didn't know all these years I had
this error there", and correct their code. Some will say "why
did they break my program", and correct their code - the corrected
code will run just fine on older versions of Python as well.

Regards,
Martin