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Reference library

Errors & debugging

Handle failures gracefully and write clearer error messages for future you.

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Errors & debugging easy

Try/except ValueError

Convert user input to int inside try/except and show a friendly message.

errors try-except input
Python 
raw = "42"

try:
    value = int(raw)
    print(f"Parsed: {value}")
except ValueError:
    print(f"Could not parse {raw!r} as an integer.")
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Errors & debugging — Python code examples

What you will find here

This page collects errors & debugging snippets — short, copy-ready Python you can paste into our free online IDE and run without installing anything. Each sample includes a plain-English explanation and the full source code.

Samples vs tutorials and challenges

Samples are quick reference — one concept per page. For step-by-step teaching, use our Python tutorials. To test yourself, try quizzes or coding challenges. Clean up style with the Python formatter.

Related coding tools

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