The File Size Profiler

A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

medium

Seniority

L3

Problem

Given entries (list of 'filepath size_bytes timestamp' strings), sum size_bytes per file extension (everything after the last '.' in the filename). Files without an extension (no '.' in basename) are grouped under the key 'no_extension'. Return a dict mapping each extension (or 'no_extension') to the total size.

Summary

File types and their disk footprint. One type dominates.

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