add element on index python code example

Example 1: how to add item to a list python

my_list = []
item1 = "test1"
my_list.append(item1)

print(my_list) 
# prints the list ["test1"]

Example 2: append to lists python

list = [1, 2, 3]
  print list.append(4)   ## NO, does not work, append() returns None
  ## Correct pattern:
  list.append(4)
  print list  ## [1, 2, 3, 4]