I’m new to python and may be being dumb here, but I can’t figure out why my server cant handle more than one connection once.

My sample code:

import time
from aiohttp import web

def testF(request): #I've tried with async def testF also
    print('Called')
    time.sleep(10)
    print('Answered')
    return web.Response(
        content_type="application/json",
        text='',
    )

if __name__ == "__main__":
    app_aio = web.Application()
    app_aio.router.add_post("/test", testF)
    web.run_app(app_aio, host="0.0.0.0", port=5200)

If I run this webserver and call the url multiple times at once it will only start the second run after the first one is returned, why?

Current output:

    Called
    Answered
    Called
    Answered
    Called
    Answered
    Called
    Answered

Expected output:

    Called
    Called
    Called
    Called
    Answered
    Answered
    Answered
    Answered