相关疑难解决方法(0)

我Expecting value: line 1 column 1 (char 0)在尝试解码JSON 时遇到错误.

我用于API调用的URL在浏览器中工作正常,但在通过curl请求完成时会出现此错误.以下是我用于curl请求的代码.

错误发生在 return simplejson.loads(response_json)

    response_json = self.web_fetch(url)
    response_json = response_json.decode('utf-8')
    return json.loads(response_json)


def web_fetch(self, url):
        buffer = StringIO()
        curl = pycurl.Curl()
        curl.setopt(curl.URL, url)
        curl.setopt(curl.TIMEOUT, self.timeout)
        curl.setopt(curl.WRITEFUNCTION, buffer.write)
        curl.perform()
        curl.close()
        response = buffer.getvalue().strip()
        return response

完全追溯:

追溯:

File "/Users/nab/Desktop/myenv2/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  111.                         response = callback(request, *callback_args, **callback_kwargs)
File "/Users/nab/Desktop/pricestore/pricemodels/views.py" in view_category
  620.     apicall=api.API().search_parts(category_id= str(categoryofpart.api_id), manufacturer = manufacturer, filter = filters, start=(catpage-1)*20, limit=20, sort_by='[["mpn","asc"]]')
File "/Users/nab/Desktop/pricestore/pricemodels/api.py" in search_parts
  176.         return simplejson.loads(response_json) …

我想通过Google Directions API动态查询Google地图.例如,此请求通过乔普林,密苏里州和俄克拉荷马城的两个航路点计算从伊利诺伊州芝加哥到洛杉矶的路线,OK:

http://maps.googleapis.com/maps/api/directions/json?origin=Chicago,IL&destination=Los+Angeles,CA&waypoints=Joplin,MO|Oklahoma+City,OK&sensor=false

它以JSON格式返回结果.

我怎么能用Python做到这一点？我想发送这样的请求,接收结果并解析它.