What are some examples of using contextlib in Python?

What are some examples of using contextlib in Python?

Contextlib is a module in Python that provides utilities for working with context managers. One common example is using contextlib.contextmanager to create a custom context manager.

Can you show me a simple example of a custom context manager?

Sure! Here's a simple example:

from contextlib import contextmanager

@contextmanager
def my_context():
    print('Entering the context')
    yield
    print('Exiting the context')

with my_context():
    print('Inside the context')

What does this code do?

This code defines a custom context manager called my_context. When you enter the with block, it prints 'Entering the context', and when you exit, it prints 'Exiting the context'.

Are there any other useful functions in contextlib?

Yes, contextlib also includes functions like closing, suppress, and redirect_stdout, which can be very useful for resource management and error handling.