Python：E1136：值“self.exchange.get_portfolio”是不可订阅的

Question

def get_portfolio(self):

        contracts = settings.CONTRACTS

        portfolio = {}

        for symbol in contracts:

            position = self.bitmex.position(symbol=symbol)

            instrument = self.bitmex.instrument(symbol=symbol)

        if instrument['isQuanto']:

            future_type = "Quanto"

        elif instrument['isInverse']:

            future_type = "Inverse"

        elif not instrument['isQuanto'] and not instrument['isInverse']:

            future_type = "Linear"

        else:

            raise NotImplementedError("Unknown future type; not quanto or inverse: %s" % instrument['symbol'])

        if instrument['underlyingToSettleMultiplier'] is None:

            multiplier = float(instrument['multiplier']) / float(instrument['quoteToSettleMultiplier'])

        else:

            multiplier = float(instrument['multiplier']) / float(instrument['underlyingToSettleMultiplier'])

        portfolio[symbol] = {

            "currentQty": float(position['currentQty']),

            "futureType": future_type,

            "multiplier": multiplier,

            "markPrice": float(instrument['markPrice']),

            "spot": float(instrument['indicativeSettlePrice'])

        }

    return portfolio

qty = self.exchange.get_portfolio['currentQty']()

有人知道我在调用 get_portfolio 函数时做错了什么，因为我不断收到以下错误消息：

E1136:Value 'self.exchange.get_portfolio' is unsubscriptable

Answer 1

你应该这样做：qty = self.exchange.get_portfolio()qty = qty[qty.keys()[0]]['currentQty']或在一行中：qty = self.exchange.get_portfolio()[self.exchange.get_portfolio().keys()[0]]['currentQty']