python list add to all elements code example

Example 1: add 1 to all elements in list python

lst = [1,2,3]
list(map(lambda x:x+1, lst))

Example 2: python add to list

list_to_add.append(item_to_add)

Example 3: add an element to list python

a=[8,5,6,1,7]
a.append(9)