Traverse through 2 dimensional list

A list is a data structure that holds an ordered collection of items i.e. you can store a sequence of items in a list
Slicing the list and manipulating the list is easy in python. Since its a sequence is iterable, we can use for loop on list. "Sequence in Python, sequence is the generic term for an ordered set.Lists are the most versatile sequence type. The elements of a list can be any object, and lists are mutable - they can be changed. Elements can be reassigned or removed, and new elements can be inserted" python two dimensional list