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Design summarize_file so it reads UTF-8 text, returns line and word counts, and gives the caller a useful error result for a missing or undecodable file instead of crashing.
Write down the input contract and the failure cases before coding.
Ready to run the file open above.
The context manager closes the file on both success and failure. Narrow exception handling keeps missing files distinct from text-encoding problems, giving a caller a stable result it can display or retry.
your-solution.py.solution.py only after a real attempt.This advanced Python exercise focuses on Context managers, Exception handling, Result contracts. Its requirements define the exact behavior to implement before you write code.
Open your-solution.py and select Run code. The browser loads Python in an isolated worker and runs your function against the visible tests.
Attempt Summarize a text file safely first. Then open the read-only solution file to compare the contract, edge-case handling, and implementation choices—not simply to copy the final code.