how to delete things from a list code example

Example 1: python list .remove

a = [10, 20, 30, 20]
a.remove(20)
# a = [10, 30, 20]
# removed first instance of argument

Example 2: pytho. how to remove from a list

names = ['Boris', 'Steve', 'Phil', 'Archie']
names.pop(0) #removes Boris
names.remove('Steve') #removes Steve