2017-07-27 37 views
-1

我有这样的JSON数据通过一个交易平台进来:如何从Python中的此JSON(datetime + prices)源获取数据?

{u'prices':       bid         ask   \ 
         Open  High  Low Close  Open  High 
DateTime                  
2016:01:01-05:00:00 10373.0 10580.0 9235.0 9703.0 10373.0 10601.0 
2016:02:01-05:00:00 9673.0 9906.0 9196.0 9675.0 9713.0 9929.0 
2016:03:01-05:00:00 9726.0 11036.0 9646.0 10899.0 9784.0 11045.0 
2016:04:01-05:00:00 10838.0 11234.0 9247.0 9371.0 10844.0 11243.0 
2016:05:01-05:00:00 9374.0 10068.0 8936.0 9983.0 9400.0 10077.0 
2016:06:01-05:00:00 9991.0 9994.0 9146.0 9536.0 9999.0 10044.0 
2016:07:01-05:00:00 9526.0 10462.0 9433.0 10418.0 9544.0 10472.0 
2016:08:01-05:00:00 10428.0 11018.0 10334.0 10595.0 10444.0 11027.0 
2016:09:01-05:00:00 10610.0 11612.0 10171.0 11293.0 10603.0 11622.0 
2016:10:01-05:00:00 11297.0 12180.0 11197.0 11350.0 11305.0 12192.0 
2016:11:01-04:00:00 11374.0 11374.0 10404.0 11055.0 11358.0 11387.0 
2016:12:01-05:00:00 11061.0 11795.0 10825.0 11568.0 11069.0 11804.0 
2017:01:01-05:00:00 11572.0 12555.0 11474.0 12498.0 11623.0 12565.0 
2017:02:01-05:00:00 12447.0 13743.0 12447.0 13698.0 12506.0 13752.0 
2017:03:01-05:00:00 13701.0 14445.0 13701.0 14366.0 13709.0 14454.0 
2017:04:01-05:00:00 14306.0 14541.0 14002.0 14361.0 14434.0 14550.0 
2017:05:01-05:00:00 14366.0 15696.0 14341.0 15278.0 14374.0 15739.0 
2017:06:01-05:00:00 15236.0 15592.0 14161.0 14404.0 15286.0 15604.0 
2017:07:01-05:00:00 14401.0 15432.0 13309.0 15422.0 14480.0 15443.0 

             spread      last  \ 
         Low Close Open High Low Close Open High 
DateTime                  
2016:01:01-05:00:00 9244.0 9714.0 0.0 21.0 9.0 11.0 None None 
2016:02:01-05:00:00 9215.0 9691.0 40.0 23.0 19.0 16.0 None None 
2016:03:01-05:00:00 9737.0 10911.0 58.0 9.0 91.0 12.0 None None 
2016:04:01-05:00:00 9256.0 9382.0 6.0 9.0 9.0 11.0 None None 
2016:05:01-05:00:00 8949.0 10000.0 26.0 9.0 13.0 17.0 None None 
2016:06:01-05:00:00 9155.0 9559.0 8.0 50.0 9.0 23.0 None None 
2016:07:01-05:00:00 9442.0 10431.0 18.0 10.0 9.0 13.0 None None 
2016:08:01-05:00:00 10372.0 10609.0 16.0 9.0 38.0 14.0 None None 
2016:09:01-05:00:00 10186.0 11304.0 -7.0 10.0 15.0 11.0 None None 
2016:10:01-05:00:00 11234.0 11359.0 8.0 12.0 37.0 9.0 None None 
2016:11:01-04:00:00 10413.0 11070.0 -16.0 13.0 9.0 15.0 None None 
2016:12:01-05:00:00 10834.0 11587.0 8.0 9.0 9.0 19.0 None None 
2017:01:01-05:00:00 11483.0 12512.0 51.0 10.0 9.0 14.0 None None 
2017:02:01-05:00:00 12472.0 13713.0 59.0 9.0 25.0 15.0 None None 
2017:03:01-05:00:00 13709.0 14379.0 8.0 9.0 8.0 13.0 None None 
2017:04:01-05:00:00 14011.0 14374.0 128.0 9.0 9.0 13.0 None None 
2017:05:01-05:00:00 14374.0 15289.0 8.0 43.0 33.0 11.0 None None 
2017:06:01-05:00:00 14194.0 14414.0 50.0 12.0 33.0 10.0 None None 
2017:07:01-05:00:00 14250.0 15438.0 79.0 11.0 941.0 16.0 None None 


         Low Close  Volume 
DateTime          
2016:01:01-05:00:00 None None 708512208 
2016:02:01-05:00:00 None None 496710765 
2016:03:01-05:00:00 None None 445406899 
2016:04:01-05:00:00 None None 468757810 
2016:05:01-05:00:00 None None 469025253 
2016:06:01-05:00:00 None None 437172919 
2016:07:01-05:00:00 None None 448678799 
2016:08:01-05:00:00 None None 359985844 
2016:09:01-05:00:00 None None 594549768 
2016:10:01-05:00:00 None None 409916710 
2016:11:01-04:00:00 None None 431415176 
2016:12:01-05:00:00 None None 361497431 
2017:01:01-05:00:00 None None 332480596 
2017:02:01-05:00:00 None None 315665923 
2017:03:01-05:00:00 None None 314834247 
2017:04:01-05:00:00 None None 212274515 
2017:05:01-05:00:00 None None 339033935 
2017:06:01-05:00:00 None None 367915336 
2017:07:01-05:00:00 None None 193057585 , 

u'instrumentType': u'SHARES', 
u'allowance':  { u'remainingAllowance': 9531, 
        u'allowanceExpiry': 32328, 
        u'totalAllowance': 10000 
        } 
} 

我无法弄清楚如何把日期时间?我可以拉开放率有以下:

open = parsed_json_data["prices"]['bid']['Open'] 

但是,当我尝试做相同的日期时间,像这样:

datetime = parsed_json_data["prices"]['bid']['DateTime'] 

我得到一个KeyError。我将如何去拉动日期时间?

+1

'parsed_json_data [“prices”] [“DateTime”]'''''parsed_json_data [“prices”]。index'? –

+0

Ahh parsed_json_data [“prices”]。index工作!谢谢! – semiflex

回答

5

parsed_json_data["prices"]看起来是pandasDataFrame,其中DateTime是它的索引。您可以以parsed_json_data["prices"].index的身份访问它。