asyncio
— Asynchronous I/OHello World!
import asyncio
async def main():
print('Hello ...')
await asyncio.sleep(1)
print('... World!')
# Python 3.7+
asyncio.run(main())
asyncio is a library to write concurrent code using the async/await syntax.
asyncio is used as a foundation for multiple Python asynchronous frameworks that provide high-performance network and web-servers, database connection libraries, distributed task queues, etc.
asyncio is often a perfect fit for IO-bound and high-level structured network code.
asyncio provides a set of high-level APIs to:
Additionally, there are low-level APIs for library and framework developers to:
networking
, running subprocesses
, handling OS signals
, etc;Reference
High-level APIs