BartC <b...@freeuk.com>: > What /is/ a method lookup? Is it when you have this: > > A.B() > > and need to find whether the expression A (or its class or type) has a > name B associated with it? (And it then needs to check whether B is > something that can be called.) > > If so, does that have to be done using Python's Dict mechanism? (Ie. > searching for a key 'B' by name and seeing if the object associated > with it is a method. That does not sound efficient.)
That is a general feature among high-level programming languages. In Python, it is even more complicated: * first the object's dict is looked up for the method name * if the method is not found (it usually isn't), the dict of the object's class is consulted * if the method is found (it usually is), a function object is instantiated that delegates to the class's method and embeds a "self" reference to the object to the call IOW, two dict lookups plus an object construction for each method call. Marko -- https://mail.python.org/mailman/listinfo/python-list
