Python Pandas Key Error

Question

두 개의 Excel 파일을 비교하고 다른 파일이 두 파일의 차이점을 볼 수 있도록 파일을 출력하려고합니다. 핵심 오류가 발생하고이를 수정하는 방법을 모르겠습니다. 현재 내 전체 코드는 다음과 같습니다

는

import pandas as pd 
import numpy as np 


def report_diff(x): 
    return x[0] if x[0] == x[1] else '{} ---> {}'.format(*x) 


old = pd.read_excel('Y:\Client Files\Client\ClientBill\March 2017\SPT List Retro Bill Mar 17.xlsx', 'List Bill', na_values=['NA']) 
new = pd.read_excel('Y:\Client Files\Client\Client Bill\March 2017\Updated SPT Mar 17.xlsx', 'List Bill', na_values=['NA']) 
old['version'] = "old" 
new['version'] = "new" 


full_set = pd.concat([old,new],ignore_index=True) 



changes = full_set.drop_duplicates(subset=[u'Employee ID', u'Benefit Plan Type',u'Sum of Premium'],keep='first') 


dupe_accts = changes.set_index(u'Employee ID', u'Benefit Plan Type', u'Sum of Premium').index.get_duplicates() 


dupes = changes[changes['Employee ID', 'Benefit Plan Type', 'Sum of Premium'].isin(dupe_accts)] 


change_new = dupes[(dupes["version"] == "new")] 
change_old = dupes[(dupes["version"] == "old")] 


change_new = change_new.drop(['version'], axis=1) 
change_old = change_old.drop(['version'], axis=1) 

change_new.set_index(u'Employee ID', u'Benefit Plan Type', u'Sum of Premium',inplace=True) 
change_old.set_index(u'Employee ID', u'Benefit Plan Type', u'Sum of Premium',inplace=True) 


diff_panel = pd.Panel(dict(df1=change_old,df2=change_new)) 
diff_output = diff_panel.apply(report_diff, axis=0) 



changes['duplicate']=changes[u'Employee ID', u'Benefit Plan Type', u'Sum of Premium'].isin(dupe_accts) 

removed_accounts = changes[(changes["duplicate"] == False) & (changes["version"] == "old")] 


new_account_set = full_set.drop_duplicates(subset=[u'Employee ID',u'Benefit Plan Type',u'Sum of Premium'],take_last=False) 


new_account_set['duplicate']=new_account_set[u'Employee ID', u'Benefit Plan Type', u'Sum of Premium'].isin(dupe_accts) 


added_accounts = new_account_set[(new_account_set["duplicate"] == False) & (new_account_set["version"] == "new")] 


writer = pd.ExcelWriter("my-diff-2.xlsx") 
diff_output.to_excel(writer,"changed") 
removed_accounts.to_excel(writer,"removed",index=False,columns=[u'Employee ID',u'Benefit Plan Type',u'Sum of Premium']) 
added_accounts.to_excel(writer,"added",index=False,columns=[u'Employee ID',u'Benefit Plan Type',u'Sum of Premium',]) 
writer.save() 

내가 오류는 변수 속는과 관련이있다.

Traceback (most recent call last): 
File "C:\Python27\Scripts\ClientBill2.py", line 24, in <module> 
dupes = changes[changes['Employee ID', 'Benefit Plan Type', 'Sum of 
Premium'].isin(dupe_accts)] 
    File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 2059, in 
__get 
item__ 
return self._getitem_column(key) 
    File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 2066, in 
_geti 
tem_column 
return self._get_item_cache(key) 
    File "C:\Python27\lib\site-packages\pandas\core\generic.py", line 1386, in 
_ge 
t_item_cache 
values = self._data.get(item) 
    File "C:\Python27\lib\site-packages\pandas\core\internals.py", line 3543, 
in g 
et 
loc = self.items.get_loc(item) 
File "C:\Python27\lib\site-packages\pandas\indexes\base.py", line 2136, in 
get 
_loc 
return self._engine.get_loc(self._maybe_cast_indexer(key)) 
    File "pandas\index.pyx", line 132, in pandas.index.IndexEngine.get_loc (pandas 
\index.c:4433) 
    File "pandas\index.pyx", line 154, in pandas.index.IndexEngine.get_loc (pandas 
\index.c:4279) 
    File "pandas\src\hashtable_class_helper.pxi", line 732, in pandas.hashtable.Py 
ObjectHashTable.get_item (pandas\hashtable.c:13742) 
    File "pandas\src\hashtable_class_helper.pxi", line 740, in pandas.hashtable.Py 
ObjectHashTable.get_item (pandas\hashtable.c:13696) 
KeyError: ('Employee ID', 'Benefit Plan Type', 'Sum of Premium') 

Answer 1

실수로 "변경 사항"을 두 번 입력 한 것처럼 보입니다.

시도 쉬웠다

dupes = changes[['Employee ID', 'Benefit Plan Type', 'Sum of Premium']].isin(dupe_accts)