【发布时间】：2016-05-26 12:25:57
【问题描述】：
我正在尝试从 Freebase 访问 mqlread API，但收到了 "Not Found" 404:
api_key = open("freebaseApiKey").read()
mqlread_url = 'https://www.googleapis.com/freebase/v1/mqlread'
mql_query = '[{"mid": null,"name": null, "type": "/location/statistical_region","limit": 100}]'
cursor = ""
topicService_url = 'https://www.googleapis.com/freebase/v1/topic'
params = {
'key': api_key,
'filter': '/location/statistical_region',
'limit': 0
}
for i in xrange(1000):
mql_url = mqlread_url + '?query=' + mql_query + "&cursor=" + cursor
print mql_url
statisticalRegionsResult = json.loads(urllib.urlopen(mql_url).read())
....
显然，当我运行我的 python 文件时，我得到：
https://www.googleapis.com/freebase/v1/mqlread?query=[{"mid": null,"name": null, "type": "/location/statistical_region","limit": 100}]&cursor=
Traceback (most recent call last):
File "[Filepath]...FreeBaseDownload.py", line 37, in <module>
statisticalRegionsResult = json.loads(urllib.urlopen(mql_url).read())
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/json/__init__.py", line 307, in loads
return _default_decoder.decode(s)
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/json/decoder.py", line 319, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/json/decoder.py", line 338, in raw_decode
raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded
我在 API 上做错了什么？我已经阅读了有关 mqlread 被弃用的信息，我在 Freebase 中获得所有统计区域（中间）的任务是什么？
【问题讨论】：