How to use asyncio in Python
Python’s asynchronous programming functionality, or async for short, allows you to write programs that get more work done by not waiting for independent tasks to finish. The asyncio library included with Python gives you the tools to use async for processing disk or network I/O without making everything else wait.
asyncio provides two kinds of APIs for dealing with asynchronous operations: high-level and low-level. The high-level APIs are the most generally useful, and they’re applicable to the widest variety of applications. The low-level APIs are powerful, but also complex, and used less frequently.