On Mon, Oct 28, 2013, at 8:00, Johannes Bauer wrote: > Hi group, > > in http://docs.python.org/3/reference/datamodel.html#customization the > doc reads: > > > There are no swapped-argument versions of these methods (to be used when > > the left argument does not support the operation but the right argument > > does); rather, __lt__() and __gt__() are each other’s reflection, __le__() > > and __ge__() are each other’s reflection, and __eq__() and __ne__() are > > their own reflection. > > But shouldn't __lt__ be the reflection or __ge__ and __gt__ the > reflection of __le__?
No... a < b is b > a - you're thinking of the relationship between a < b and not(a >= b), which is not the argument-swapping it is referring to. -- https://mail.python.org/mailman/listinfo/python-list