functors
Troy Melhase
troy at gci.net
Tue Jul 1 21:46:28 EDT 2003
Tom Plunket wrote:
> What I want (being a C++ coder <g>), is to be able to create an
> object that I is callable.
Hi Tom:
I'm not quite certain how you intend to use the classes you provided in your
original post, but the answer to your question is to define a __call__
method in your class. Untested example:
class SomeClass:
def __init__(self, factor):
self.factor = factor
def __call__(self, value):
return value * self.factor
my_object = SomeClass(3)
print my_object(4)
You can learn more about __call__ and other special functions for classes in
the Language Reference (section 3.3 for python2.2).
Good luck,
troy
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