This is my code:-
import sqlite3
from tkinter import *
from tkinter import messagebox
def enter():
root.geometry('650x850')
conn = sqlite3.connect('ceregister.db')
c = conn.cursor()
c.execute("SELECT name FROM register")
table=c.fetchall()
for i in range(len(table)): #Rows
#for j in range(width): #Columns
b = Entry(root)
b.grid(row=7+i, column=0)
b.insert(0,table[i])
b.configure(state='disabled')
c = Entry(root)
c.grid(row=7+i,column=1,sticky=W)
conn.close()
root=Tk()
root.geometry('500x300')
root.title("CE Maker Vr. 2021")
lblname=Label(root,text="Name of the Teacher: ")
lblname.grid(row=0,column=0,pady=20)
lblsubject=Label(root,text="Subject: ")
lblsubject.grid(row=1,column=0,sticky=E)
txtteacher=Text(root,width=25,height=1)
txtteacher.grid(row=0,column=1)
txtsubject=Text(root,width=25,height=1)
txtsubject.grid(row=1,column=1)
lblclass=Label(root,text="Class: ")
lblclass.grid(row=2,column=0,pady=20,sticky=E)
#btnsave=Button(root,text="Save Marks",command=savemark)
#btnsave.grid(row=0,column=3)
btnenter=Button(root,text="Enter CE Marks", command=enter)
btnenter.grid(row=3,column=1,columnspan=2,sticky=EW)
root.mainloop()