import ccxt


exchanges = {
    "bitmex": {
        "apiKey": "***",
        "secret": "***"
    },
}

exchange = ccxt.bitmex()
exchange.apiKey = exchanges["bitmex"]["apiKey"]
exchange.secret = exchanges["bitmex"]["secret"]

balance = exchange.fetch_balance()

print("free:" + str(balance["free"]))
print("used:" + str(balance["used"]))
print("total:" + str(balance["total"]))