Boolean from comparison chain
Implement a function that evaluates a chain of comparisons and returns the boolean result.
Max of a variable-length list
Implement a function that returns the maximum value from a list of numbers without using max().
Classify triangle by sides
Write a function that classifies a triangle based on three side lengths.
Toggle a boolean n times
Apply boolean toggling n times and return the final boolean value.
Between inclusive
Write a function that returns True if a number is between two given bounds, inclusive of the bounds.
Last Occurrence of a Value
Implement a function that returns the last index of a given value in a list, or -1 if it's not present.
Cycle a List Once
Implement a function that rotates a list right by one position.
Boolean Mask Filter
Write a function that filters a list based on a boolean mask and returns the selected elements.
Replace negatives with zero
Implement a function that replaces all negative numbers in a list with zero.
Set symmetric difference
Write a function that returns the elements found in exactly one of two sets, sorted ascending.
Swap Two Values
Implement a Python function that swaps two given values and returns them in swapped order.
Count Multiples in a Range
Given a start, end, and divisor, count how many integers in [start, end] are divisible by the divisor.
Hello, name!
Implement a function that returns a personalized greeting for a given name.
Leap Year Checker
Implement a function that returns True if a year is a leap year according to the Gregorian calendar rules.
Grade Calculator
Implement a function that converts a numeric score to a letter grade using a standard scale.
Minutes to Hours: Time Conversion Helper
Write a function that converts minutes into a human-readable 'Xh Ym' string, with special cases for zero and whole hours.
Simple Interest Calculator
Implement a function that calculates simple interest given principal, annual rate, and time in years.
Tip Calculator
Write a function that calculates the total bill after adding a given tip percentage.
Absolute Difference
Implement a function that returns the absolute difference between two numbers.
Max of three numbers
Implement a function that returns the maximum of three numbers using comparisons.
Sign of a number
Write a function sign_of_number that returns -1 for negatives, 0 for zero, and 1 for positives.
Countdown printer
Implement a function that prints a countdown from a given number down to 1, then returns 'Go!'.
Sum from 1 to n
Write a function that returns the sum of all integers from 1 to n (inclusive).
Average of a list
Write a function that computes the average of a list of numbers, handling empty lists by returning 0.
Showing 25–48 of 106 challenges · Python Basics
Python Basics — Python coding challenges
What you will find here
This page lists python basics challenges — real Python problems you solve in the browser IDE with instant test feedback. Each challenge includes a clear brief, starter code, and automated checks.
Challenges vs tutorials and quizzes
Challenges test what you can build under constraints. For guided teaching, use our Python tutorials. For quick checks, try quizzes or copy snippets from code samples.