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2 cards from this section. Quick, good the night before a test.
What does the enter method do?
Think about what happens before we start using a resource.
Explain the purpose of the with statement.
What benefit does it provide for managing files or connections?
What is the primary purpose of the with statement in Python?
Think about resource safety in programming.
True or False: The exit method can suppress exceptions if needed.
What happens when an exception occurs inside a with block?
Design a context manager to handle network connections, ensuring it safely opens and closes connections.
What do you need to do on opening and closing a connection?
Implement a context manager whose __exit__ handles an exception raised inside the with block, and show what happens when __enter__ itself raises an exception.
`__exit__` only runs once `__enter__` has finished, so raise the exception inside the `with` block to see it handled.
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