Agentic AI - Agent Safety and Guardrails
Which Python code snippet correctly validates that an input string contains only digits?
Which Python code snippet correctly validates that an input string contains only digits?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Understand string methods for validation
isdigit() returns True if all characters are digits, perfect for numeric validation.Step 2: Compare other methods
isalpha() checks letters, islower() checks case, strip() removes spaces, so they don't validate digits.Final Answer:
input_str.isdigit() -> Option CQuick Check:
Check digits = isdigit() [OK]
Quick Trick: Use isdigit() to check if string is all numbers [OK]
Common Mistakes:
- Using isalpha() for digits
- Confusing strip() with validation
- Using islower() incorrectly
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