Asynchronous programming is a paradigm where you write code that can handle multiple tasks concurrently without blocking the execution of your program. This approach is particularly useful for I/O-bound tasks, such as network operations or file reading, where the program might otherwise be idle while waiting for data.
Asynchronous programming can make your applications more efficient and responsive. It enables you to perform other tasks while waiting for I/O-bound tasks to complete.
In Python, asynchronous programming is primarily achieved using the asyncio
library, which provides a framework for writing single-threaded concurrent code using async
and await
keywords.
Here’s a quick example of asynchronous programming using Python’s asyncio
library:
>>> import asyncio
>>> async def greet():
... print("Hello")
... await asyncio.sleep(1)
... print("World")
...
>>> async def main():
... await greet()
...
>>> asyncio.run(main())
Hello
World
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In this example, greet()
is an asynchronous function that prints "Hello"
, waits for one second, and then prints "World"
.
Tutorial
Getting Started With Async Features in PythonThis step-by-step tutorial gives you the tools you need to start making asynchronous programming techniques a part of your repertoire. You'll learn how to use Python async features to take advantage of IO processes and free up your CPU.
For additional information on related topics, take a look at the following resources:
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