What are the best practices for using context managers in Python?

What are the best practices for using context managers in Python?

Using context managers helps manage resources efficiently. Best practices include using the 'with' statement, creating custom context managers, and ensuring proper exception handling.

Can you give an example of a custom context manager?

Sure! Here's a simple example:

class MyContext:
    def __enter__(self):
        print('Entering the context')
        return self

    def __exit__(self, exc_type, exc_value, traceback):
        print('Exiting the context')

with MyContext() as context:
    print('Inside the context')

What are some common mistakes to avoid when using context managers?

Common mistakes include not using the 'with' statement, failing to handle exceptions properly, and not closing resources explicitly when needed.

How do context managers improve code readability?

Context managers improve readability by clearly defining resource management boundaries, making it easier to understand the flow of resource allocation and deallocation.