Python - Advanced Exception Handling
You want to create a function that raises a custom error if a username is empty or less than 3 characters. Which code correctly raises a custom error with message 'Invalid username'?
You want to create a function that raises a custom error if a username is empty or less than 3 characters. Which code correctly raises a custom error with message 'Invalid username'?
hard🚀 Application Q8 of Q15
Step-by-Step Solution
Solution:
Step 1: Check condition for empty or short username
def check_user(name): if not name or len(name) < 3: raise ValueError('Invalid username') uses 'not name' to check empty and 'len(name) < 3' correctly.Step 2: Confirm correct raise syntax and message
def check_user(name): if not name or len(name) < 3: raise ValueError('Invalid username') raises ValueError with the correct message.Final Answer:
def check_user(name): if not name or len(name) < 3: raise ValueError('Invalid username') -> Option CQuick Check:
Correct condition and raise syntax used [OK]
Quick Trick: Check empty with 'not' and raise ValueError with message [OK]
Common Mistakes:
MISTAKES- Using wrong condition logic
- Printing error instead of raising
- Raising string instead of Exception
Master "Advanced Exception Handling" in Python
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