How to Easily Do Asynchronous Programming with Asyncio in Python

• URL: https://youtu.be/2IW-ZEui4h4
• Channel/Host: ArjanCodes
• Publish Date: 2021.12.17
• Reviewed Date: On This Day...

---

---

Example:

import asyncio

async def main():
	await asyncio.sleep(0.5)
	print('Bryan')
	await asyncio.sleep(0.5)

asyncio.run(main())

#>>> Bryan

async

import asyncio

async def main():
	print('Bryan')

asyncio.run(main())

await

import asyncio

async def main():
	await asyncio.sleep(0.5)
	print('Bryan')
	await asyncio.sleep(0.5)

asyncio.run(main())

#>>> Bryan

gather

Run several functions in parallel

import asyncio

async def main0():
	print('Bryan')

async def main1():
	print('John')

async def main2():
	print('Jane')

async def testing():
    asyncio.gather(
            main0(),
            main1(),
            main2()
    )

asyncio.run(testing())

Structure parallelism and sequential execution elegantly

import asyncio

async def run_sequence(*functions: Awaitable[Any]) -> None:
	for function in functions:
		await function

async def run_parallel(*functions: Awaitable[Any]) -> None:
	await asyncio.gather(*functions)

---

Backlinks

• On This Day... (DevLog)
• Asyncio (DevLog)