Question

我已经将一些数据提取到python中，我想在谷歌强度地图中将其可视化。这是我的python代码 - （相关部分）

query = "SELECT USState, NOFU2008 FROM " + TABLE_ID 
data2008 = service.query().sql(sql=query).execute()
print data2008['columns']
query = "SELECT USState, NOFU2009 FROM " + TABLE_ID 
data2009 = service.query().sql(sql=query).execute()
# print data2009
query = "SELECT USState, NOFU2010 FROM " + TABLE_ID 
data2010 = service.query().sql(sql=query).execute()


variables = {"data2008": data2008}
self.render_response('index.html', json.encode(variables))

我想在浏览器上显示一个地图，其中包含三个按钮2008,2009和2010，根据点击的按钮，地图上的强度会发生变化。上面的代码给出了以下错误 -

Traceback (most recent call last):

  File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1535, in __call__

    rv = self.handle_exception(request, response, e)

  File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1529, in __call__

    rv = self.router.dispatch(request, response)

  File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1278, in default_dispatcher

    return route.handler_adapter(request, response)

  File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1102, in __call__

    return handler.dispatch()

  File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 572, in dispatch

    return self.handle_exception(e, self.app.debug)

  File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 570, in dispatch

    return method(*args, **kwargs)

  File "C:\Users\Yash\New folder\data\Assignments\jmankoff-byte3\main.py", line 67, in get

    self.render_response('index.html', json.encode(variables))

  File "C:\Users\Yash\New folder\data\Assignments\jmankoff-byte3\main.py", line 33, in render_response

    values.update(context)

ValueError: dictionary update sequence element #0 has length 1; 2 is required

INFO     2014-03-03 00:15:23,483 module.py:612] default: "GET / HTTP/1.1" 500 1858

注意 - 在上面的代码中我只传递了data2008。我还想要data2009和data2010。

如何将数据转换为json，以便可以在javascript中访问它

0 个答案: