当请求的站点明显是JSON时，无法解码JSON对象

Question

我正在写一个小的python应用程序，它将更新我的投资组合livecoin.net网站. 我使用livecoin.net网站API以及coinmarketcap.com应用程序编程接口。当从coinmarketcap.comAPI，如果您转到它（https://api.coinmarketcap.com/v1/ticker/bitcoin/）显然是JSON，我会得到以下错误：

Traceback (most recent call last):
  File "C:/Users/other/Desktop/livecoin.py", line 89, in <module>
    cmcData = getCoinMarketCapData(balances)
  File "C:/Users/other/Desktop/livecoin.py", line 22, in getCoinMarketCapData
    cmcData = json.load(cmcResponse)
  File "C:\Python27\lib\json\__init__.py", line 291, in load
    **kw)
  File "C:\Python27\lib\json\__init__.py", line 339, in loads
    return _default_decoder.decode(s)
  File "C:\Python27\lib\json\decoder.py", line 364, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Python27\lib\json\decoder.py", line 382, in raw_decode
    raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded

正如我前面所说的，我得到的页面非常清楚地是JSON，所以我真的不知道为什么会发生这种情况。有人能帮我吗？你知道吗

我很清楚，这不是一个慈善代码工作的网站，但我很难办，这是我的计划Z。。。如果你愿意帮忙，甚至不需要为我写任何代码，只要试着告诉我哪里错了。谢谢：D

这是我的密码：

# -*- coding: utf-8 -*-
import httplib
import urllib
import json
import hashlib
import hmac
from collections import OrderedDict

def getCoinMarketCapData(currencies):
    returns = {}

    cmcUrl = "api.coinmarketcap.com"
    cmcMethod = "/v1/ticker/"

    conn = httplib.HTTPSConnection(cmcUrl)

    for item in currencies:
        print item['name'].split(" ")[0].lower();
        print cmcMethod+(item['name'].split(" ")[0].lower())
        conn.request("GET", cmcMethod+(item['name'].split(" ")[0].lower()))
        cmcResponse = conn.getresponse()
        cmcData = json.load(cmcResponse)
        c = {"name":item['name'].split(" ")[0], "currency":item['symbol'],     "price_usd":cmcData[0]['price_usd'], "price_btc":cmcData[0]['price_btc'], "d1h":cmcData[0]['percent_change_1h'], "d24h":cmcData[0]['percent_change_24h'], "d7d":cmcData[0]['percent_change_7d'], "value":0.0}
    returns[item['symbol']] = c

    conn.close()

    return returns


def getData(dataDict, method, server, key, secret):
    encoded_data = urllib.urlencode(dataDict)

    sign = hmac.new(secret, msg=encoded_data,     digestmod=hashlib.sha256).hexdigest().upper()

    headers = {"Api-key":key, "Sign":sign}

    conn = httplib.HTTPSConnection(server)
    conn.request("GET", method + '?' + encoded_data, '', headers)

    response = conn.getresponse()
    data = json.load(response)
    conn.close()

    return data

def outputLine(key, value, prefix, suffix):
    spaces = ""
    pslen = len(prefix) + len(suffix)
    key = key.upper()
    key = " " + key + ": "
    keylen = len(key)
    x = 35-keylen-pslen
    for count in range(x-len(str(value))):
        spaces += " "
    return key + prefix + value + suffix + spaces

server = "api.livecoin.net"
balancesMethod = "/payment/balances"
coinInfoMethod = "/info/coinInfo"
api_key = "gEuyw7k4WvAhdXUmG36zHDksDZGR3fvq"
secret_key = "D4aTtN6tPxBqqDG24PFZ1238CMektp33"
responses = []
names = []
balances = []

namesJSON = getData([], coinInfoMethod, server, api_key, secret_key)['info']
for name in namesJSON:
    names.append({"name":name['name'], "symbol":name['symbol']})

data = OrderedDict([])
d = getData(data, balancesMethod, server, api_key, secret_key)
responses.append(d)

for currency in responses[0]:
    if currency['value'] > 0.0 and currency['type'] == 'total':
        for name in names:
            if name['symbol'] == currency['currency']:
                currency['name'] = name['name']
        balances.append(currency)

ownedCoins = []

for balance in balances:
    ownedCoins.append({"name":balance['name'], "symbol":balance['currency']})

print ownedCoins

cmcData = getCoinMarketCapData(balances)

for balance in balances:
    try:
        cmcData[balance['currency']]['value'] = balance['value']
    except:
    continue

for coin in ownedCoins:
    print coin
    item = cmcData[str(coin)]
    v = item['value']
    v = "%f" % (v)

    print "+-----------------------------------+"
    print "|" + outputLine('currency', item['currency'], "", "") + "|"
    print "|" + outputLine('amount owned', v, "", "") + "|"
    print "|" + outputLine('price in usd', item['price_usd'], "$", "") + "|"
    print "|" + outputLine('price in btc', item['price_btc'], u'\u20BF', "") + "|"
    print "|" + outputLine('% change 1h', item['d1h'], "", "%") + "|"
    print "|" + outputLine('% change 24h', item['d24h'], "", "%") + "|"
    print "|" + outputLine('% change 7d', item['d7d'], "", "%") + "|"
    print "+-----------------------------------+"
    print "\n"

Answer 1

我已经能够使用以下代码加载json：

import urllib, json
url = "https://api.coinmarketcap.com/v1/ticker/bitcoin/"
response = urllib.urlopen(url)
data = json.loads(response.read())

当我尝试使用json.load而不是json.loads时，我得到了一个错误（与您的不同），但它可能会给您一个关于可能出错的提示。你知道吗