Iterators, Generators & Decorators Interview Questions | Python | NextRound

1Why is it important to use functools.wraps when writing a decorator?Advanced

2What is the difference between a class-based decorator and a function-based decorator?Advanced

3How does the yield keyword turn a function into a generator, and what happens to the function's state between calls?Advanced

4What is the difference between yield and yield from?Advanced

5What is a decorator, and how does it use closures to wrap a function's behavior?Intermediate

6What is the difference between an iterable and an iterator? What protocol must an object implement to be an iterator?Intermediate

7How would you write a decorator that accepts arguments (e.g., @retry(times=3))?Advanced

8How would you process a very large file that doesn't fit in memory using generators?Intermediate