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Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens if you don't close a file after opening it?
π‘ Hint: Think about what happens in the background when a file is not properly closed.
Question 2
Easy
How do context managers help with database connections?
π‘ Hint: Recall the example of the `DatabaseConnection` class.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the primary purpose of a context manager?
π‘ Hint: Think about the behaviors they encapsulate regarding resources.
Question 2
True or False: A context manager can be used to prevent data loss by ensuring files are closed.
π‘ Hint: Consider the advantages of automatic cleanup.
Solve 1 more question and get performance evaluation
Push your limits with challenges.
Question 1
Implement a context manager called FileOpener
that opens a file, reads its contents, and closes it automatically. Using this manager, read and print the contents of 'example.txt'.
π‘ Hint: What will you include in the `__enter__` and `__exit__` methods?
Question 2
Describe a scenario in which failing to use a context manager for thread locks could lead to incorrect program behavior. Provide a solution using context managers.
π‘ Hint: What problems arise from simultaneous thread access?
Challenge and get performance evaluation