What are context managers in Python?

What are context managers in Python?

Context managers in Python are used to manage resources, ensuring proper allocation and deallocation.

Can you give me an example of how to use a context manager?

Sure! A common example is using the with statement to open a file. It automatically closes the file after the block.

What happens if an error occurs within the context manager?

If an error occurs, the context manager will still ensure that resources are released properly, thanks to its design.

Are there any built-in context managers in Python?

Yes, Python has several built-in context managers, like open() for files and threading.Lock() for thread synchronization.