[Python-Dev] Why not support user defined operator overloading ?

[张佩佩]

Hello:
	As far as I know, there is not a language support user defined operator overloading.
Python3 can overloading belowed operators.
-	negated
+	unchanged

-	minus
+	add
*	multiplication
/	division
//	true division
%	remainder
**	power
(Do I miss something ?)

If we can overloading these operators, why we can't overloading other operators?
(like .* often used in matrix, U in set operation)


Regards!
Peipei