[Python-3000] A plus for naked unbound methods
Terry Reedy
tjreedy at udel.edu
Mon Oct 6 20:19:56 CEST 2008
Mark Seaborn wrote:
> Terry Reedy <tjreedy at udel.edu> wrote:
>
>> I have seen a couple of objections to leaving unbound methods naked (as
>> functions) when retrieved in 3.0. Here is a plus.
>>
>> A c.l.p poster reported that 2.6 broke his code because the addition of
>> default rich comparisons to object turned tests like hassattr(ob,
>> '__lt__') from False to True.
>
> For the record, the post is:
> http://mail.python.org/pipermail/python-list/2008-October/510540.html
>
>> The obvious fix ob.__lt__ == object.__lt__ does not work because
>> wrapping makes it always False, even when conceptually true. In
>> 3.0, that equality test works. (I pointed him to 'object' in
>> repr(ob.__lt__) as a workaround. Others posted others.)
>
> Assuming ob is an instance object,
It was a class derived from object. I should have made that clearer.
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