python Example of Determining If an Object Is Iterable

How to judge that an object is an iterable object?

The method is determined by the Iterable type of the collections module:

>>> from collections import Iterable
>>> isinstance('abc',Iterable)
True
>>> isinstance([1,2,3,4],Iterable)
True
>>> isinstance(1234,Iterable)
False
>>> isinstance((1,),Iterable)
True
>>> L = ['a','b','c']
>>> enumerate(L)
<enumerate object at 0x03AA94E0>
>>> isinstance(enumerate(L),Iterable)
True
>>> for m,n in enumerate(L):
...   print m,n 
... 
0 a
1 b
2 c