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

Domain

Python

Difficulty

medium

Seniority

L4

Problem

Given a list of trip dicts (each with 'city', 'status', 'completed_utc' in ISO format with 'Z'), filter to city='San Francisco' AND status='completed'. Convert completed_utc to Pacific time (UTC-8 fixed, ignoring DST for simplicity). Per YYYY-MM (in Pacific time), count completions. Return a dict {year-month: count}.

Summary

Trip data and timezones. They're not the same thing.

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