On Wed, Jul 2, 2008 at 3:54 AM, wesley chun <[EMAIL PROTECTED]> wrote:
> in the former, you have a function object. it's just like any other > Python object, but with one heaping distinction: it's callable -- > this means that u can slap on a pair of parentheses after the object > and execute it, which is what i did after calling choice() above to > pick one of the 2 functions, then *calling it* with the trailing "()". A slight nit-pick - being callable is not such a huge distinction. Any object whose class has a __call__() method is callable, including functions, bound and unbound methods, and instances of user-defined classes containing __call__(). For example: In [6]: class Callable(object): ...: def __call__(self): ...: print "I'm not a function" In [7]: c=Callable() In [8]: c() I'm not a function Like so many things in Python, the mechanism underlying function call is exposed through a special method and available to hook into. Kent _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
