Question

I have the following list

a = ['a','c','d']

I need to check whether the list index 4(or any index) is present on the list or not. Is there a method similar to php isset in python for this(without using exception handling)?

Answer 1

You can use len() to check whether the Index is present or not.

As len(list) returns something like last_index+1:

In [18]: a = ['a','c','d']

In [19]: len(a)-1 > 4  #or len(a)>4
Out[19]: False

In [20]: len(a)-1 > 2
Out[20]: True