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925 challenges 556 easy 323 medium 46 hard

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Error Handling & Exceptions easy

Safe Integer from String

Implement safe_int that converts a string to an integer, returning a default value on any failure, with support for an optional base.

exceptions parsing default-value

Error Handling & Exceptions easy

Safe divide function

Implement safe_divide that returns None on ZeroDivisionError and TypeError.

try-except division error-handling

Error Handling & Exceptions easy

Safe int parser

Implement safe_parse_int that converts a string to an int, returning a default value on failure.

exceptions parsing validation

Error Handling & Exceptions easy

Safe Float Parser

Write a function that safely converts a string to a float, returning None for invalid inputs.

float exception parsing

Error Handling & Exceptions easy

Divide with zero check

Write a function that safely divides two numbers, catching division by zero.

exceptions division error-handling

Error Handling & Exceptions easy

Key error handler

Implement a safe dictionary access function that returns a default value on missing keys.

exceptions dict fallback

Error Handling & Exceptions easy

Else on try block

Implement a function that uses try-except-else to safely divide two numbers and return a result or error description.

exception-handling try-except-else division

Error Handling & Exceptions easy

Parse JSON safely

Implement a robust JSON string parser that returns a fallback on invalid input.

json exceptions try-except

Error Handling & Exceptions easy

Exit handler registration

Write a function that registers a callback to run at interpreter exit and returns True on success.

atexit exceptions cleanup

Error Handling & Exceptions easy

Parse Error Recovery

Parse a whitespace-separated string into a list of valid integers, skipping invalid tokens.

parsing exceptions error-handling

Error Handling & Exceptions easy

Validation result object

Implement a ValidationResult class that tracks validation errors and can report validity.

validation error-handling oop

Showing 1–11 of 11 challenges · easy · Error Handling & Exceptions

Error Handling & Exceptions — Python coding challenges

What you will find here

This page lists error handling & exceptions 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.