Rename Keys
A medium Python mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- Domain
- Python
- Difficulty
- medium
- Seniority
- L3
Interview Prompt
We're consolidating user records arriving from several upstream systems, each labeling the same fields differently. Given one record and a mapping from a field's incoming name to its canonical name, return a new record with the listed fields renamed and every other field carried through unchanged.
Summary
Old names out. New names in.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your Python against test cases
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision