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

Domain

Python

Difficulty

easy

Seniority

L4

Problem

Given a list of dicts (records) and a key name, return a dict mapping each distinct value found at that key to the number of records containing that value. Records that do not have the key must be skipped.

Summary

Some fields speak louder than others.

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