What are some alternatives to using a with statement in Python?

What are some alternatives to using a with statement in Python?

You can use try-finally blocks or context managers manually to manage resources without a with statement.

Can you give me an example of using try-finally instead?

Sure! Here's an example:

file = open('example.txt', 'r')
try:
    data = file.read()
finally:
    file.close()

What about using contextlib? How does that work?

Using contextlib, you can create a context manager easily. For example:

from contextlib import closing

with closing(open('example.txt', 'r')) as file:
    data = file.read()

Are there any performance differences between these methods?

Generally, using a with statement is more concise and can be slightly more efficient, but the differences are often negligible.