Loading interview...
The Custom Iterator
A medium Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- medium
- Seniority
- mid, senior
Interview Prompt
A data pipeline framework needs a reusable range-like generator that can be embedded in for loops. Implement a Range class that accepts start, stop, and optional step arguments and behaves like Python's built-in range but as a class with proper iterator protocol - __iter__ and __next__.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your python solution with real code execution
- Get instant feedback and a hire/no-hire decision