I think he meant that Python should have introduced different operators for addition and sequence concatenation.for instance I have written once somekind of vector class where it was natural for these vectors to be added as well as te be concatenated. Unfortunately python uses "+" for both so I had no way to have both operators in a natural way in python.
And no way in mathematics or any other language either - if you want the same function symbol on the same operators to have _different_ semantics, you're getting pretty non-deterministic.
Your opinion is wrong. It's because you seem to not have understood the example: The expression (5 + 4) could be understood as 9 or as (9,). In
It should be understood as 9, but if integers etc implement the sequence protocol, 9 can be used just like a tuple (http://www.livejournal.com/users/glyf/29038.html).
There have been other proposals where you could write 'for i in 5' etc.
I find this 'creative use of overloading' rather awful. But what the heck, I find list comprehension rather awful.
Daniel -- http://mail.python.org/mailman/listinfo/python-list
