TypeError: start_aggtrade_socket() missing 1 required positional argument: 'callback' about python-binance HOT 2 CLOSED

Because you must indicate a callback function for the socketmanager to call back.

from binance.websockets import BinanceSocketManager
def mycallback(msg):
    print("I will do something will the msg")

bm = BinanceSocketManager(client)
bm.start_aggtrade_socket(symbol='BTCUSD',callback = mycallback)
bm.start()

from python-binance.

Thanks, but when I run your code I don't receive print info print("I will do something will the msg") and I don't receive any message.
I would like to export every order/trade to txt file. How can I do that?

@duduzhu thanks for support your code fix the issue.

from python-binance.