Per Freem <perfr...@yahoo.com> writes: > the only 'twist' is that my elt is an instance of a class (MyClass) > with 3 fields, all numeric. the class is hashable, and so > my_dict[elt] works well. the __repr__ and __hash__ methods of my > class simply return str() representation of self,
which just calls __str__(). I guess you are aware of that but you could call self.__str__() directly. Maybe that saves something when you do that 10 million times. > while __str__ just makes everything numeric field into a > concatenated string: > > class MyClass > > def __str__(self): > return "%s-%s-%s" %(self.field1, self.field2, self.field3) > > def __repr__(self): > return str(self) > > def __hash__(self): > return hash(str(self)) Maybe it would be faster to numerically combine the three fields instead of hashing the string representation. Matthias -- http://mail.python.org/mailman/listinfo/python-list
