Double integers
Input
(1, 2, 3), lambda x: x*2
Output
(2, 4, 6)
Each value is doubled via the provided lambda.
Full lesson preview
Transform tuple elements using map
Apply a function to every element of a tuple using map and return a new tuple.
Python practice10 minFunctions as Objects (Lambda, Map/Filter)BeginnerLast updated March 20, 2026
Problem statement
Write a function transform_tuple(tpl, func) that takes a tuple tpl and a single-argument function func, applies func to each element of tpl using map, and returns a new tuple with the transformed values. The function should work for any callable func passed in (including lambdas).
Task
Practice using map to transform elements and convert the result back to a tuple.
Examples
Input format
Two arguments: a tuple and a function (callable) to apply to each element.
Output format
A tuple containing the transformed elements.
Constraints
Use map(...) to apply the function. Do not use list/dict comprehensions to replace map entirely.
Samples
Sample 1
Input
('a', 'b'), lambda s: s.upper()
Output
('A', 'B')
The lambda converts each string to uppercase.