SyntaxError: 'async with' outside async function

[adnan2911]

Hello
I am using very simple code on raspberry pi using python 3 as below

import aiohttp
import pysmartthings

token = 'xxxxxxx'

async with aiohttp.ClientSession() as session:
        api = pysmarthings.SmartThings(session,token)
        devices = await api.devices()
        print(len(devices))

but i am getting below error
SyntaxError: 'async with' outside async function

Kindly please help
Thanks
Adnan

[posborne]

Hi @adnan2911, you are correct that the snippet is not complete as provided. With python asyncio you will need to put that fragment inside an async function. You will also need to run the async function on a reactor. Here's a complete example you can play with:

#!/usr/bin/env python3
import aiohttp
import asyncio
import pysmartthings

token = '...'

async def print_devices():
    async with aiohttp.ClientSession() as session:
        api = pysmartthings.SmartThings(session, token)
        devices = await api.devices()
        for device in devices:
            print("{}: {}".format(device.device_id, device.label))


def main():
    loop = asyncio.get_event_loop()
    loop.run_until_complete(print_devices())
    loop.close()

if __name__ == '__main__':
    main()

[adnan2911]

Thanks alot Paul, It worked with above code

Regards,
Adnan

[FelixAsch]

How can I change the mediaInputSource on my SmartTV?
Im new in programming with smartthings, so i don't get your doku.

Regards,
Felix