Write your own len() in Python

The method len() returns the number of elements in the list or length of the string depending upon the argument you are passing.

How to implement without using len():

1. Take input and pass the string/list into
   a function which return its length.
2. Initialize a count variable to 0, this count 
   variable count character in the string.
3. Run a loop till length if the string and increment 
   count by 1.
4. When loop is completed return count.

Python implementation:

Output:

13

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