有问题弄清楚了为什么这种特殊设置无法正常工作。
class market(object):
def __init__(self, market, coin):
self.coin = coin
self.market = market
req = requests.get(f"http://bittrex.com/api/v1.1/public/getticker?market={market}-{coin}")
sum = requests.get(f"https://bittrex.com/api/v1.1/public/getmarketsummary?market={market}-{coin}")
self.address = req.json()
self.marketsum = sum.json()
def ticker(self):
while True:
print(self.address["result"])
time.sleep(5)
def marketsummary(self):
print(f"Market Summary for {coin}")
print('_' * 20)
print("Market Name: ", self.marketsum['result']['MarketName'])
print("High: ", self.marketsum['result']['High']))
print("Low: ", self.marketsum['result']['Low'])
print("Volume: ", self.marketsum['result']['Volume'])
print("Last: ", self.marketsum['result']['Last'])
print("BaseVolume: ", self.marketsum['result']['BaseVolume'])
print("TimeStamp: ", self.marketsum['result']['TimeStamp'])
print("Bid: ", self.marketsum['result']['Bid'])
print("Ask: ", self.marketsum['result']['Ask'])
print("OpenBuyOrders: ", self.marketsum['result']['OpenBuyOrders'])
print("OpenSellOrders: ", self.marketsum['result']['OpenSellOrders'])
print("Previous Day: ", self.marketsum['result']['PrevDay'])
print("Created: ", self.marketsum['result']['Created'])
print("DisplayMarketName: ", self.marketsum['result']['DisplayMarketName'])`
我以前在if语句中将此方法与static（？jaron？）变量一起使用，例如
usdt_ticker = requests.get("https://bittrex.com/api/v1.1/public/getticker?market=USDT-ADA")
btc_ticker = requests.get("https://bittrex.com/api/v1.1/public/getticker?market=BTC-ADA")
eth_ticker = requests.get("https://bittrex.com/api/v1.1/public/getticker?market=ETH-ADA")
print("Which trade pairing would you like for this coin?")
tradepair = input("> ")
if str.lower(tradepair) == "usdt" or "tether":
actual_ticker = usdt_ticker.json()
elif str.lower(tradepair) == "btc" or "bitcoin":
actual_ticker = btc_ticker.json()
elif str.lower(tradepair) == "eth" or "ethereum":
actual_ticker = eth_ticker.json()
else:
print("Sorry that trading pair isnt currently being monitored by this system")
print("Now viewing Cardano /", str.upper(tradepair), " trading." )
current_price = actual_ticker["result"]["Last"]
但是
self.marketsum['result']['MarketName']无法正常工作。如果有任何关于为什么发生这种情况以及如何解决它的意见，我将不胜感激。我得到的错误是TypeError: list indicies must be integers or slices, not str 最佳答案
在developer's guide中，来自/public/getmarketsummary的响应的json结构如下所示：
{
"success" : true,
"message" : "",
"result" : [{
"MarketName" : "BTC-LTC",
"High" : 0.01350000,
"Low" : 0.01200000,
"Volume" : 3833.97619253,
"Last" : 0.01349998,
"BaseVolume" : 47.03987026,
"TimeStamp" : "2014-07-09T07:22:16.72",
"Bid" : 0.01271001,
"Ask" : 0.01291100,
"OpenBuyOrders" : 45,
"OpenSellOrders" : 45,
"PrevDay" : 0.01229501,
"Created" : "2014-02-13T00:00:00",
"DisplayMarketName" : null
}
]
}
请注意，结果实际上是一个包含单个元素的列表。他们没有说明为什么它出现在列表中，而我无法让它返回包含多个元素的列表。
现在，可以更改从中访问
marketsum的行self.marketsum['result']['last']
至
self.marketsum['result'][0]['last']
可能还会添加一个检查，以确保列表不为空。
关于python - 从嵌套字典中打印类，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/50069108/