updated examples/py/async.py
updated examples/py/async.py

ccxt/ccxt,ccxt/ccxt,tritoanst/ccxt,thijstriemstra/ccxt,tritoanst/ccxt,ccxt/ccxt,thijstriemstra/ccxt,ccxt/ccxt,aiueogawa/ccxt,aiueogawa/ccxt,aiueogawa/ccxt,thijstriemstra/ccxt,ccxt/ccxt,aiueogawa/ccxt,tritoanst/ccxt,thijstriemstra/ccxt,tritoanst/ccxt