how to push a new value to a python list 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 an element to list python

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