The Exception Handler
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
A reconciliation job receives batches of [numerator, denominator] pairs from upstream feeds that aren't always clean. Return one result per pair in the order received: the quotient where it can be computed, a text label where it can't, so one bad pair never costs the rest of the batch.
Summary
Good code handles failure as gracefully as success.
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