Skip to content
Related Articles

Related Articles

Python | Adding N to Kth tuple element
  • Last Updated : 29 Oct, 2019

Many times, while working with records, we can have a problem in which we need to change the value of tuple elements. This is a common problem while working with tuples. Let’s discuss certain ways in which N can be added to Kth element of tuple in list.

Method #1 : Using loop
Using loops this task can be performed. In this, we just iterate the list to change the Kth element by predefined value N in code.




# Python3 code to demonstrate working of
# Adding N to Kth tuple element
# Using loop
  
# Initializing list
test_list = [(4, 5, 6), (7, 4, 2), (9, 10, 11)]
  
# printing original list
print("The original list is : " + str(test_list))
  
# Initializing N 
N = 3 
  
# Initializing K 
K = 1
  
# Adding N to Kth tuple element
# Using loop
res = []
for i in range(0, len(test_list)):
    res.append((test_list[i][0], test_list[i][K] + N, test_list[i][2]))
  
# printing result
print("The tuple after adding N to Kth element : " + str(res))
Output :
The original list is : [(4, 5, 6), (7, 4, 2), (9, 10, 11)]
The tuple after adding N to Kth element : [(4, 8, 6), (7, 7, 2), (9, 13, 11)]

 

Method #2 : Using list comprehension
This method is having the same approach as the above method, just reduces lines of code using list comprehension functionality to make code compact by size.






# Python3 code to demonstrate working of
# Adding N to Kth tuple element
# Using list comprehension
  
# Initializing list
test_list = [(4, 5, 6), (7, 4, 2), (9, 10, 11)]
  
# printing original list
print("The original list is : " + str(test_list))
  
# Initializing N 
N = 3 
  
# Initializing K 
K = 1
  
# Adding N to Kth tuple element
# Using list comprehension
res = [(a, b + N, c) for a, b, c in test_list]
  
# printing result
print("The tuple after adding N to Kth element : " + str(res))
Output :
The original list is : [(4, 5, 6), (7, 4, 2), (9, 10, 11)]
The tuple after adding N to Kth element : [(4, 8, 6), (7, 7, 2), (9, 13, 11)]

Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course.

My Personal Notes arrow_drop_up
Recommended Articles
Page :