pandasによる株価データベースのアップデート

from get_kabu_data import get_kabu_data
from datetime import datetime
import pandas as pd
code = '4348'
start1 = datetime(2018, 9, 15)
end1 = datetime(2018, 10, 5)
ohlc1 = get_kabu_data(code, start1, end1)

ohlc1

ohlc1['2018-09-26':'2018-09-28'] = 0
ohlc1

start2 = datetime(2018, 9, 25)
end2 = datetime(2018, 10, 1)
ohlc2 = get_kabu_data(code, start2, end2)
ohlc2

for i in ohlc2.index:
    
    if i in ohlc1.index:
    
        check = ohlc2.loc[i].equals(ohlc1.loc[i])
        print(i,check)
        if not check:
            ohlc1.loc[i] = ohlc2.loc[i]
    else:
        ohlc1.loc[i] = ohlc2.loc[i]

if not ('2017-09-24' in ohlc1.index):
    ohlc1.loc['2017-09-24'] = [2000.0,2010.0,1999.0,2005.0,100000]
ohlc1

ohlc1.loc[:, 'Open':'Close'] = ohlc1.loc[:, 'Open':'Close']/4
ohlc1.loc[:, 'Volume'] = ohlc1.loc[:, 'Volume']*4

ohlc1