Python：如何使用 openpyxl 为特定的 excel 表添加值？

Question

So I wanted to add a value to a specific sheet in this case we have 2 sheets, Student Profile and Student Grades

from openpyxl import load_workbook

file = load_workbook("Registry.xlsx")
sheet = file.active
sheet.create_sheet("Student Grades")
#Student Profile
sheet["A1"] = "ID No.:"
sheet["B1"] = "Last Name:"
sheet["C1"] = "First Name:"
sheet["D1"] = "Middle Name:"
sheet["E1"] = "Sex:"
sheet["F1"] = "Date of Birth:"
file.save("Registry.xlsx")

but if we do it again with for Student Grades it just overrides the previous values of Student Profile since it stays in the sheet1

file = load_workbook("Registry.xlsx")
sheet = file.active
sheet["A1"] = "ID No:"
sheet["B1"] = "Math"
sheet["C1"] = "Science:"
sheet["D1"] = "English"
file.save("Registry.xlsx")

I tried to do:

sheet = file["Student Grades"].active
#or
sheet["Student Grades", "A1"] = "ID No."

but it returns as an error. But I noticed, if you accessed sheet 2, Student Grades, using Excel and saved before exiting. It places the value on sheet 2 instead 1. The problem is I need it to be fully automated so I can't access excel beforehand.

Edit: This is small part of a project with CRUD functions where we're restricted from using databases like sql. So we have to resort to excel instead. Since it have CRUD functions, excel file needs to be constantly updating when you have a added value to it. So i have to get that specific sheet and edit the cell values within it

Answer 1

You need to create a sheet for the profiles with Workbook.create_sheet as you did for the grades.

Try this:

from openpyxl import load_workbook

wb = load_workbook("Registry.xlsx")

#Student Profile
ws_sp = wb.create_sheet("Student Profiles")
ws_sp["A1"] = "ID No.:"
ws_sp["B1"] = "Last Name:"
ws_sp["C1"] = "First Name:"
ws_sp["D1"] = "Middle Name:"
ws_sp["E1"] = "Sex:"
ws_sp["F1"] = "Date of Birth:"

#Student Grades
ws_sg = wb.create_sheet("Student Grades")
ws_sg["A1"] = "ID No:"
ws_sg["B1"] = "Math"
ws_sg["C1"] = "Science:"
ws_sg["D1"] = "English"

wb.save("Registry.xlsx")