String length without len function

Question

Can anyone tell me how can I get the length of a string without using the len() function or any string methods. Please anyone tell me as I\'m tapping my head ma

Answer 1

Here's a method which isn't using neither len nor iteration:

>>> a = 'a' * 200000
>>> a.rindex(a[-1]) + 1
200000

To make it work for lists, which don't have rindex, use:

>>> a = list(range(200000))
>>> a.index(a[-1], -1) + 1
200000