[Python-Dev] Keep default comparisons - or add a second set?

Robert Brewer fumanchu at amor.org
Wed Dec 28 23:01:09 CET 2005


Noam Raphael wrote:
> I don't think that every type that supports equality
> comparison should support order comparison. I think
> that if there's no meaningful comparison (whether
> equality or order), an exception should be raised.

Just to keep myself sane...
 def date_range(start=None, end=None):
 if start == None:
 start = datetime.date.today()
 if end == None:
 end = datetime.date.today()
 return end - start
Are you saying the "if" statements will raise TypeError if start or end are dates? That would be a sad day for Python. Perhaps you're saying that there is a "meaningful comparison" between None and anything else, but please clarify if so.
Robert Brewer
System Architect
Amor Ministries
fumanchu at amor.org
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