I don't understand why aren't my Entry Widgets not accepting any input

Question

I tried doing everything but my Entry boxes aren't ready to accept any input

First just install ttkbootstrap to execute the code.

pip install ttkbootstrap

import tkinter as tk
from tkinter import messagebox as mgb
from ttkbootstrap import *
import sqlite3 as sql

conn = sql.connect("Stock Data.db")
cursor = conn.cursor()

def AddData(Date, Quality, Quantity, Invoice, Supplier):
    cursor.execute(f'''INSERT INTO Stock (Date, Quality, Quantity, Invoice, Supplier) VALUES ('{Date}','{Quality}',{Quantity},{Invoice},'{Supplier}'));''')
def SortData():
    pass
def ResetAdd():
    Date.set("Date")
    Quality.set("Quality")
    Quantity.set("Quantity")
    Invoice.set("Invoice Number")
    Supplier.set("Supplier")
def ResetSort():
    pass

frame = Window("Stock Book", themename="superhero")

if mgb.askquestion("First Time", "Is this app opened for the FIRST TIME?") == "yes":
    cursor.execute('DROP TABLE IF EXISTS Stock')
    cursor.execute(''' CREATE TABLE Stock
            (Date TEXT,
            Quality TEXT,
            Quantity INT,
            Invoice INT,
            Supplier TEXT);''')

root = Frame(frame, padding=10)
root.pack(pady=5, fill=X, side=TOP)

nb = Notebook(root)
nb.pack(side=LEFT, padx=(10, 0), expand=YES, fill=BOTH)

AddDataFrame = Frame(nb, padding=15)
AddDataFrame.pack(fill=BOTH, pady=(10, 5), expand=YES)
Date = StringVar(AddDataFrame)  
DatEntry = Entry(AddDataFrame, width=50, textvariable=Date) #Date
DatEntry.pack(fill=X, pady=5)
Quality = StringVar(AddDataFrame)
QualityEntry = Entry(AddDataFrame, textvariable=Quality) #Quality
QualityEntry.pack(fill=X, pady=5)
Quantity = StringVar(AddDataFrame)
QuantityEntry = Entry(AddDataFrame, textvariable=Quantity) #Quantity
QuantityEntry.pack(fill=X, pady=5)
Invoice = StringVar(AddDataFrame)
InvoiceNumberEntry = Entry(AddDataFrame, textvariable=Invoice) #Invoice SupplierNumber
InvoiceNumberEntry.pack(fill=X, pady=5)
Supplier = StringVar(AddDataFrame)
SupplierEntry = Entry(AddDataFrame, textvariable=Supplier) #Supplier
SupplierEntry.pack(fill=X, pady=5)
ResetButton = Button(AddDataFrame, text="RESET", style="Danger.TButton", width=22, command=ResetAdd) #Reset
ResetButton.pack(pady=10, side = LEFT)
SaveButton = Button(AddDataFrame, text="ADD DATA", style="Success.TButton", width=22, command=lambda:AddData(
    Date.get(),
    Quality.get(),
    Quantity.get(),
    Invoice.get(),
    Supplier.get()
)) #Save
SaveButton.pack(pady=10, side = RIGHT)

SortDataFrame = Frame(nb, padding=15)
SortDataFrame.pack(fill=BOTH, pady=(10, 5), expand=YES)
SorterEntry = Entry(SortDataFrame, width=50) #Sorter
SorterEntry.pack(fill=X, pady=5)
SorterEntry.insert(END, "Sorter")
SortererEntry = Entry(SortDataFrame) #Quality
SortererEntry.pack(fill=X, pady=5)
SortererEntry.insert(END, "Value")
ResetButton = Button(SortDataFrame, text="RESET", style="Danger.TButton", width=22, command=ResetSort) #Reset
ResetButton.pack(pady=10, side = LEFT)
SortButton = Button(SortDataFrame, text="SORT", style="Success.TButton", width=22, command=SortData) #Sort
SortButton.pack(pady=10, side = RIGHT)

nb.add(AddDataFrame, text="Add Data", sticky=NW)
nb.add(SortDataFrame, text="Sort Data", sticky=NW)

tk.mainloop()

I tried reading the docs, changing the code, re-running the code a 100 times, restarting my laptop, everything, but it wont accept any input.

Answer 1

I had the same error. Adding trace_add worked for me.

import tkinter as tk

root = tk.Tk()


def my_callback(var, index, mode):
    print(name.get())


name = tk.StringVar()
name.set("default name")
name.trace_add('write', my_callback)

entry_field = tk.Entry(root, textvariable=name)
entry_field.pack()

root.mainloop()