如何从Python异步运行外部命令？

import asyncio
import subprocess

async def run_command(command):
    process = await asyncio.create_subprocess_shell(
        command,
        stdout=asyncio.subprocess.PIPE,
        stderr=asyncio.subprocess.PIPE
    )

    stdout, stderr = await process.communicate()

    if process.returncode != 0:
        raise Exception(f"Command '{command}' failed with error: {stderr.decode('utf-8')}")

    return stdout.decode('utf-8')

async def main():
    command1 = "echo 'Hello, World!'"
    command2 = "echo 'Goodbye, World!'"

    task1 = asyncio.create_task(run_command(command1))
    task2 = asyncio.create_task(run_command(command2))

    output1 = await task1
    output2 = await task2

    print(f"Output from command 1: {output1}")
    print(f"Output from command 2: {output2}")

if __name__ == "__main__":
    asyncio.run(main())