意外错误:“ DataFrame”对象没有属性“ select_dtypes”

时间:2019-12-24 23:17:06

标签: python pandas dataframe influxdb

我需要将时间序列数据写入influxdb。我正在获取数据,它是字典列表,具有3列datetime,int64和int64。将datetime字段作为DataFrame的索引,并尝试使用write_points写入influxdb。

代码段:

数据:

  

datad_list = [{'time':datetime.datetime(2012,12,29,21,3,5,   203020),'c':5456L,'m':263L},{'time':datetime.datetime(2012,12,   29,21,3,4,956438),'c':5451L,'m':263L},{'time':   datetime.datetime(2012,12,29,21,3,4,704390),'c':5459L,'m':   263L},{'time':datetime.datetime(2012、12、29、21、3、4、451795),   'c':5476L,'m':263L},{'time':datetime.datetime(2012,12,29,21,   3,4,204375),'c':5477L,'m':263L},

      try:
          df = pd.DataFrame(datad_list, columns=['time', 'c', 'm'])
      except:
          print "Unexpected error:", sys.exc_info()[1]
      df.set_index(pd.DatetimeIndex(df['time']), inplace=True)
      df.drop('time',axis=1,inplace=True)

      print(df)
      client = DataFrameClient(host, port, USER, PASSWORD, DBNAME)
      print("setting data: ")
      try:
          client.write_points(df, DBNAME, protocol='line', time_precision='ms')
      except:
          print "Unexpected error:", sys.exc_info()[1]
      print("Querying data: ")
      result = client.query("select * from pdbase")
      print("Result: {0}".format(result))

输出:

                                  c     m
2012-12-29 21:03:05.203020        5456  263
2012-12-29 21:03:04.956438        5451  263
2012-12-29 21:03:04.704390        5459  263
2012-12-29 21:03:04.451795        5476  263
2012-12-29 21:03:04.204375        5477  263

设置数据:

Unexpected error: 'DataFrame' object has no attribute 'select_dtypes'

write_points引发异常

请让我知道我做错了什么。预先感谢。

0 个答案:

没有答案