How do I use context managers in async functions?

How do I use context managers in async functions?

You can use context managers in async functions by utilizing the async with statement. This allows you to manage resources asynchronously.

Can you give me an example of using an async context manager?

Sure! Here's a simple example:

import aiofiles

async def read_file(file_path):
    async with aiofiles.open(file_path, 'r') as f:
        contents = await f.read()
    return contents

What libraries support async context managers?

Libraries like aiofiles, asyncio, and httpx support async context managers. They help manage resources in an async environment.

Are there any performance considerations when using them?

Yes, while async context managers can improve resource management, ensure that the overhead of async calls doesn't outweigh the benefits in performance.