asyncio.run()

Async

Runs an async coroutine and returns the result. The main entry point for async programs.

Signature

asyncio.run(coro)

Returns

any

Example

import asyncio

async def main():
    await asyncio.sleep(1)
    return 'done'

result = asyncio.run(main())
print(result)  # 'done'

About asyncio.run()

asyncio.run is a Python async function with the signature asyncio.run(coro). Runs an async coroutine and returns the result. The main entry point for async programs. It returns a value of type any.

Python provides a rich set of built-in functions and standard library modules that cover common programming tasks. Understanding these functions helps you write more idiomatic, efficient Python code. The asyncio.runfunction is commonly used in data processing, web development, scripting, and automation tasks.

When working with asyncio.run(), consider edge cases like empty inputs, None values, and type mismatches. Python's duck typing means many built-in functions work with any object that implements the required protocol (e.g., __len__ for len(), __iter__ for iteration). This flexibility is a key strength of Python's design philosophy.

Related Functions

asyncio.gather()