How to Update Lists in Python: A Comprehensive Guide

Update List Using Index

We can update list using index like below.

list = ['English', 'Hindi']
print ("Value available at index 1 : ", list[1])

list[1] = 2001  #list[1]=2001 for single item update

print ("New value available at index 1 : ", list[1])

Output

Value available at index 1 :  Hindi
New value available at index 1 :  2001

Update List Using slice

We can update single or multiple elements of lists by giving the slice on the left-hand side of the assignment operator.

list = ['English', 'Hindi', 1997, 2000]
print ("Value available at index 2 : ", list[2])

list[2:3] = 2001,2002 #list[2]=2001 for single item update

print ("New value available at index 2 : ", list[2])
print ("New value available at index 3 : ", list[3]) 

Output

Value available at index 2 :  1997
New value available at index 2 :  2001
New value available at index 3 :  2002