I'm playing with Python callable. Basically you can define a python class and implement __call__ method to make the instance of this class callable. e.g.,
class AwesomeFunction(object):
def __call__(self, a, b):
return a+b
Module inspect has a function getargspec, which gives you the argument specification of a function. However, it seems I cannot use it on a callable object:
fn = AwesomeFunction()
import inspect
inspect.getargspec(fn)
Unfortunately, I got a TypeError:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.6/inspect.py", line 803, in getargspec
raise TypeError('arg is not a Python function')
TypeError: arg is not a Python function
I think it's quite unfortunate that you can't treat any callable object as function, unless I'm doing something wrong here?