python数据清洗-区分excel两列不同的值

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A列在B列中不存在的值

# -*- coding: utf-8 -*-
"""
Created on Thu Jun 23 10:33:27 2016

@author: Administrator
"""

import xlrd
fileName="省份处理.xlsx"

#获取一个excel内首页表格
def Get_sheet1_from_oneExcel(excelFileName):
    wb=xlrd.open_workbook(excelFileName)
    sheet=wb.sheets()[0]
    return sheet
    
    
sheet=Get_sheet1_from_oneExcel(fileName)
list_columnA=sheet.col_values(0)
list_columnB=sheet.col_values(1)

diffrence_list=[]
for i in list_columnA:
    if i=="":
        continue
    if i not in list_columnB:
        diffrence_list.append(i)
        
'''
diffrence_list
Out[47]: ['总局']

'''

print(diffrence_list)

　　

 

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