FizzBuzz, precisely
Return a newline-separated string for 1..n: Fizz, Buzz, FizzBuzz, or the number.
Even or odd?
Return 'even' or 'odd' for an integer.
Sum of digits
Return the sum of all decimal digits of a non-negative integer.
Power of two?
Return True if n is an exact power of 2.
Prime checker
Return True if n is a prime number.
Compound interest
Return the future balance after compound interest, rounded to two decimals.
Clamp a Number to a Range
Implement a clamp function that returns a value within a specified range.
Min of three numbers
Write a function that returns the minimum of three integers.
Integer division and remainder
Write a function that performs integer division and returns both quotient and remainder.
Count down from n
Implement a function that returns a list from n down to 1.
Multiplication Table Row
Return the nth row of a multiplication table as a list of 1..n products.
Sign of a Number
Write a function that returns the sign of a number as a string.
Is a multiple of both
Write a function that returns True if a number is divisible by both of two given divisors.
Digit count of an integer
Given an integer, return the number of digits it has, handling negatives and zero correctly.
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().
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.
Boolean Mask Filter
Write a function that filters a list based on a boolean mask and returns the selected elements.
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.
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.
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.
Find Minimum Value
Write a function that returns the minimum integer from a given list.
Range of values
Calculate the range (max minus min) of a list of numbers. Empty list returns 0.
Is divisible by?
Create a function that returns True if a is divisible by b with no remainder, with a clear definition of edge cases.
Area of Rectangle
Write a function that returns the area of a rectangle given its width and height.
Perimeter of triangle
Given three side lengths, return the perimeter (sum) of the triangle.
Volume of Cube
Write a Python function that returns the volume of a cube given its side length.
Modulo Remainder
Implement a function that returns the remainder of a divided by b without using the modulo operator.
Print Pyramid Pattern
Implement a function that returns a centered asterisk pyramid as a list of strings.
Last Digit Extractor
Write a function that returns the last digit of a non-negative integer using the modulo operator.
Count word occurrences
Write a function that takes a sentence and returns a dictionary of word counts.
Find Missing Number
Given a list of n distinct integers from 0..n with one missing, return the missing number.
Linear Search Implementation
Implement a linear search function that returns the index of the first occurrence of a target in a list, or -1 if not found.
Validate date format
Return True if input string is exactly YYYY-MM-DD and a real calendar date.
Count Leading Zeros
Write a function that returns the number of leading zeros in a list of integers.
Showing 44 challenges · easy · Python Basics
Python Basics — Python coding challenges
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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.