[Python-Dev] NotImplemented reaching top-level (original) (raw)

Armin Rigo arigo at tunes.org
Sun Dec 25 12:35:50 CET 2005

Hi Facundo,

On Sat, Dec 24, 2005 at 02:31:19PM -0300, Facundo Batista wrote:

>>> d += 1.2 >>> d NotImplemented

The situation appears to be a mess. Some combinations of specific operators fail to convert NotImplemented to a TypeError, depending on old- or new-style-class-ness, although this is clearly a bug (e.g. in an example like yours but using -= instead of +=, we get the correct TypeError.)

Obviously, we need to write some comprehensive tests about this. But now I just found out that the old, still-pending SF bug #847024 about A()*5 in new-style classes hasn't been given any attention; my theory is that nobody fully understands the convoluted code paths of abstract.c any more :-(

A bientot,

Armin

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