The Lazy Unpacker
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
- L4
Interview Prompt
A nightly job emits grouped metric readings as a list `nested` whose entries are either numbers or further lists. Collapse it into a single flat list of every reading.
Summary
Peel back every layer until only the values remain.
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