Letters in the Noise

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

Domain

Python

Difficulty

easy

Seniority

L5

Problem

A text-cleaning step in your pipeline needs a per-letter tally of the raw strings passing through it. For a given `s`, return the letter frequencies as `[letter, count]` pairs.

Summary

Case and punctuation are distractions. Find what each letter really weighs.

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