我想将特定列保存到 python 中的新 excel 表中

Question

if this is the spread sheet then I want to make a new spreadsheet containing only product id :

transaction id product id
1001           1    
1002           2
1003           3

the code I have written so far I am able to print a particular column

import openpyxl as xl
from openpyxl import Workbook
wb = xl.load_workbook('transactions.xlsx')
sheet = wb['Sheet1']
book = Workbook()
x = input("row name")
y=int(x)
book.save("sample.xlsx")
for row in sheet.rows:
     print(row[y].value)

Answer 1

Why not just use to_excel . Its a lot less complicated:

df[['product_id']].to_excel('sample.xlsx', index = False)  #Keeping index = True will have an extra row with index