Level 6Exercise #129

Total file size

Return the total byte size of regular files directly inside a directory.

What you’ll practice

This Level 6 exercise focuses on Path.stat in the Professional curriculum. Solve the challenge prompt above using clear, idiomatic Python and the relevant language or standard-library tools.

Relevant Python reference: pathlib — Object-oriented filesystem paths.

Sample Test Cases

Example #1

Input:directory_bytes('.')

Output:25

Reference Solution

Reveal Reference Solution

def directory_bytes(root: str) -> int:
    from pathlib import Path
    return sum(path.stat().st_size for path in Path(root).iterdir() if path.is_file())

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Total file size

What you’ll practice

Sample Test Cases

Further Reading

Reference Solution