What is the basic usage of contextlib in Python?

What is the basic usage of contextlib in Python?

The contextlib module in Python provides utilities for working with context managers. It helps manage resources efficiently.

Can you give me an example of how to use it?

Sure! You can use contextlib to create a context manager using the contextmanager decorator. 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 the yield statement do in this context?

The yield statement temporarily pauses the function, allowing code within the with block to run. After that, it resumes to execute any cleanup code.

Are there any built-in context managers in Python?

Yes, Python has built-in context managers like open() for file handling, which automatically closes the file after the block.