Mon Dec 7 08:06:00 CST 2009
There was some discussion on this recently. "==" actually has special
fall-back code for strings, whereas "equal" is just a "raw" ufunc, and
no ufunc's support strings.
Of course bool(NotImplemented) == True is sort of a separate issue that
can be dealt with independently of whether ufuncs grow string support of
Pauli Virtanen wrote:
> su, 2009-12-06 kello 23:01 -0800, Fernando Perez kirjoitti:
>> 2009/12/6 josef.pktd <email@example.com>:
>> Why is NotImplemented a *return* value? Normally NotImplementedError
>> is a raised exception, but if it's not implemented, it shouldn't be
>> returned as a value.
> Maybe it is so because some code paths are shared with the == operation?
> But in any case, NotImplemented should never be returned to the user --
> I believe it's only meant to be an internal value used in determining
> the proper comparison operation between values.
> A bug ticket should be filed for this, I believe.
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