tuple of tuples append python code example

Example 1: how to add number in tuple

a = ('2',)
b = 'z'
new = a + (b,)

Example 2: how to add strings in tuple in python

First, convert tuple to list by built-in function list().
You can always append item to list object.
Then use another built-in function tuple() to 
convert this list object back to tuple.
You can see new element appended to original tuple representation.

by tutorialspoint.com 

happy coding :D