There is an easy way of checking if an object in python is iterable or not. The following code will do the needful.

>>> def check(A):

... try:

... st = iter(A)

... print('yes')

... except TypeError:

... print('no')

>>> check(25)

no

>>> check([25,35])

yes

Here you can observe that the 25 is an integer, so it is not iterable, but [25,35] is a list which is iterable so it outputs no and yes respectively.