Practice Problems
Strengthen your understanding of def with these auto-graded scenarios.
No input() calls—run each snippet directly and compare with the expected output.
1. Function with Default Parameter
Pyground
Write a greet function that defaults the greeting to 'Hello' but allows overrides.
Expected Output:
Hello, Riya! Hi, Kabir!
Output:
2. Variadic Sum
Pyground
Implement add_all(*numbers) that returns the sum of all arguments.
Expected Output:
6 0
Output:
3. Keyword-Only Parameter
Pyground
Define send_email(to, *, subject, body) and call it with keywords for subject and body.
Expected Output:
To: team@example.com Subject: Standup Daily update.
Output:
4. Closure for Counters
Pyground
Create counter(start) that returns a function incrementing from start by 1 each call.
Expected Output:
6 7
Output:
5. Decorator Practice
Pyground
Write a decorator that prefixes 'DEBUG:' to the string returned by a function.
Expected Output:
DEBUG: Service healthy
Output:
6. Positional-Only Parameter
Pyground
Define slugify(text, /) that replaces spaces with hyphens and lowercases the text.
Expected Output:
feature-flag