how does insert work in python code example

Example 1: python insert

# The insert() method inserts an element to the list 
# at a given index.
# Syntax: list_name.insert(index, element)
my_list = ["Add", "Answer"]
my_list.insert(1, "Grepper")
print (my_list)
> ['Add', 'Grepper', 'Answer']

Example 2: how to add elememt in pytohn

ls=[]
ls.append('Apple')
ls.append('Mango')
for i in ls:
	print(i)