declare a list in python with size code example

Example 1: python create a list with fixed size

>>> [None]*10
[None, None, None, None, None, None, None, None, None, None]

Example 2: creating a list of size n in python

>>> my_list = [None] * 10
>>> my_list
[None, None, None, None, None, None, None, None, None, None]