Practice What is an Iterator? - 3.2.1 | Chapter 3: Generators and Iterators | Python Advance
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is an iterator in Python?

πŸ’‘ Hint: Think of it as a way to access elements sequentially.

Question 2

Easy

Name the two methods that an object must implement to be considered an iterator.

πŸ’‘ Hint: One returns the iterator itself, the other returns the next item.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does the next() method do in an iterator?

  • Returns the iterator object itself
  • Returns the next value
  • Raises StopIteration

πŸ’‘ Hint: It retrieves one item at a time.

Question 2

True or False: The iter() method must return a new iterator each time.

  • True
  • False

πŸ’‘ Hint: Just remember that it identifies the same iterator.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a generator that can count both up and down based on a parameter. If the parameter is positive, count up; if negative, count down. Explain your approach.

πŸ’‘ Hint: Consider how to handle the count state in both scenarios.

Question 2

Develop a comprehension of how iterators can be utilized in data pipelines, providing a custom example.

πŸ’‘ Hint: Think of real-world situations where data flows through various stages.

Challenge and get performance evaluation