Understanding __call__ in Python 3

[Ephexeve]

I am reading a Python book for Pyton 2.5 (But I am doing Python 3). I am at the chapter classes and I got this part;

"You can check whenever the function attribute was callable."

callable(tc,'talk',None)

In Python3 we do not have callable anymore, so I checked on the internet, how do it, and I found this:

hasattr(anything, '__call__')

Now here are my question:

1.) What do I have to put in the "anything" part? a function of a class?

2.) What does callable actually do? What does callable actually means? To check when was the last time I used that function..? What does it do? And what kind of situatins would I use this?

Thanks in advance

[dwblas]

This has already been answered in another forum.

[bvdet]

"A function call is an expression containing a simple type name and a parenthesized argument list."

Builtin function callable() returns True if an object has a __call__ method or False if not.

>>> callable
<built-in function callable>
>>> callable(str)
True
>>> hasattr(str, "__call__")
True
>>> x = 10
>>> callable(x)
False
>>>