Python Exercise: Replace last value of tuples in a list

Last update on March 28 2025 13:04:26 (UTC/GMT +8 hours)

21. Replace the Last Value of Tuples in a List

Write a Python program to replace the last value of tuples in a list.

Sample Solution:

Python Code:

# Create a list of tuples, where each tuple contains three numbers.
l = [(10, 20, 40), (40, 50, 60), (70, 80, 90)]

# Use a list comprehension to iterate through each tuple 't' in the list 'l'.
# For each tuple, create a new tuple by removing the last element and adding the number 100.
# The result is a list of modified tuples.
print([t[:-1] + (100,) for t in l]) 

Sample Output:

[(10, 20, 100), (40, 50, 100), (70, 80, 100)] 

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to iterate over a list of tuples and replace the last element of each tuple with a fixed value.
• Write a Python program to use tuple slicing and concatenation to update the last value of every tuple in a list.
• Write a Python program to implement a function that modifies each tuple in a list by setting its last element to a new value.
• Write a Python program to create a new list of tuples where each tuple’s last element is replaced, using list comprehension.

Python Code Editor:

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