add element into list in python code example

Example 1: add something to list python

#append to list
lst = [1, 2, 3]
something = 4
lst.append(something)
#lst is now [1, 2, 3, 4]

Example 2: add to a list python

#append to list
lst = [1, 2, 3]
li = 4
lst.append(li)
#lst is now [1, 2, 3, 4]

.append("the add"): append the object to the end of the list.
.insert("the add"): inserts the object before the given index.
.extend("the add"): extends the list by appending elements from the iterable.