问题描述

我正在使用 Python 和 Pandas。

我下面的代码正在读取亚马逊股票的信息：

import gspread
from oauth2client.service_account import ServiceAccountCredentials
import pprint
import datetime as dt
import matplotlib.pyplot as plt
from matplotlib import style
from scipy.signal import argrelextrema
from pandas_datareader import data as pdr
import fix_yahoo_finance as yf
import pandas as pd


def sample_reading_from_yahoo():
    # setting plotting, start  / end date and time
    style.use('ggplot')

    # setting up the date and time
    start = dt.datetime(2017, 1, 1)
    end = dt.date.today()

    # pull back the data
    yf.pdr_override()
    #data = pdr.get_data_yahoo("AMZN", start, end="2017-09-12")

    data = pdr.get_data_yahoo("AMZN", start, end)

    data = data.rename(columns={'Open': 'open'})
    data = data.rename(columns={'High': 'high'})
    data = data.rename(columns={'Low': 'low'})
    data = data.rename(columns={'Close': 'close'})
    data = data.rename(columns={'Adj Close': 'adjusted'})
    data = data.rename(columns={'Volume': 'vol'})

    data = data.drop_duplicates(keep=False)

    data = data[['open', 'high', 'low', 'close', 'vol']]
    return data


# MAIN
data = sample_reading_from_yahoo()
print(data)

输出如下所示：

                   open         high          low        close       vol
Date                                                                    
2017-01-03   757.919983   758.760010   747.700012   753.669983   3521100
2017-01-04   758.390015   759.679993   754.200012   757.179993   2510500
2017-01-05   761.549988   782.400024   760.260010   780.450012   5830100
2017-01-06   782.359985   799.440002   778.479980   795.989990   5986200
2017-01-09   798.000000   801.770020   791.770020   796.919983   3440100
2017-01-10   796.599976   798.000000   789.539978   795.900024   2558400

每当我对 MAIN 区域进行如下更改时，

# MAIN

data = sample_reading_from_yahoo()
print(data)

data.Date = pd.to_datetime(data.Date, format='%d.%m.%Y %H:%M:%S.%f')

data.set_index(data.Date)

我收到以下错误

回溯（最后一次调用）：文件“C:/Users/dgmufasa/PycharmProjects/Opportunities/Opportunities.py”，第 96 行，数据 = sample_reading_from_yahoo() 文件“C:/Users/dgmufasa/PycharmProjects/Opportunities/Opportunities. py"，第 86 行，在 sample_reading_from_yahoo data.Date = pd.to_datetime(data.Date, format='%d.%m.%Y %H:%M:%S.%f') 文件“C:\WORK \Software\Python64bitv3.6\lib\site-packages\pandas\core\generic.py”，第 3614 行，在getattr 返回对象中。getattribute (self, name) AttributeError: 'DataFrame' 对象没有属性 'Date'

我怎样才能解决这个问题？

修改

@CK Chen - 感谢您的回复。

我做了以下更改：

def sample_reading_from_yahoo():
    [... snip ...]

    #print(data['vol'])

    data = data.drop_duplicates(keep=False)

    data = data[['open', 'high', 'low', 'close', 'vol']]
    return data

# MAIN

data = sample_reading_from_yahoo()

#print(data.index)

data['datetime_index'] = pd.to_datetime(data.index, format='%m-%d-%Y %H:%M:%S')
data.set_index('datetime_index')

print('THIS THE DATA RESULT')
print(data)

并得到了结果：

THIS THE DATA RESULT
                   open         high          low        close       vol  \
Date                                                                       
2017-01-03   757.919983   758.760010   747.700012   753.669983   3521100   
2017-01-04   758.390015   759.679993   754.200012   757.179993   2510500   
2017-01-05   761.549988   782.400024   760.260010   780.450012   5830100    

           datetime_index  
Date                       
2017-01-03     2017-01-03  
2017-01-04     2017-01-04  
2017-01-05     2017-01-05

时间格式似乎没有改变。我做错了什么？

TIA

标签： pythonpandas

python - 使用 python 和 pandas 读取雅虎数据时出错

问题描述

修改

解决方案

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