Alexander Eisenhuth a écrit : > Hello, > > is there a assignement operator, that i can overwrite?
Adding to Simon Brunning reply (assignment is a statement). > class MyInt: > def __init__(self, val): > assert(isinstance(val, int)) > self._val = val > > a = MyInt(10) > > # Here i need to overwrite the assignement operator > a = 12 Here you bind the 12 (Python int value) to name 'a', then 'a' has the int type, not your MyInt (which value has been lost). You may define a 'set' method, and write: a = MyInt(10) a.set(12) And, if a is a member of another class, you may define an accessor for that 'a' member in that class, which automatically call your set method when giving an int value. b.a = MyInt(10) b.a = 12 ---> b.a.set(12) A+ Laurent. -- http://mail.python.org/mailman/listinfo/python-list
