почти пиздато, удалить и изменить не сделаны

from tkinter import *
from tkinter import messagebox
from pprint import pprint as p

root = Tk()
names = ["№", "Наименование", "Срок хранения", "Страна", "Цена", "В наличии"]
root.title("Продукты в магазине")
root.geometry("830x600")
lastrow = 0
a = []
massiv_file = []
massiv_nomera = []
present_row = 0
massiv_a = []
indeks_intselect = 0
kolvo_yacheek = 0
MyFile = "qwerty.txt"
my_lines = []
edit_or_add = 0
flag = True

def defaultcells():
    global lastrow
    a = []
    for i in range(6):
        b = Entry(root)
        b.grid(row=lastrow, column=i)
        a.append(b)
    lastrow += 1
    massiv_a.append(a)
    a[0].configure(width=3)
    a[1].configure(width=20)
    a[2].configure(width=20)
    a[3].configure(width=20)
    a[4].configure(width=20)
    a[5].configure(width=20)
    for i in range(6):
        a[i].insert(END, names[i])
        a[i].configure(readonlybackground='white', state='readonly')
    print('lastrow + ' + str(lastrow))


kontent = []


def addcells():
    global kolvo_yacheek, massiv_a, lastrow, edit_or_add, flag
    c = []
    if lastrow == 13:
        btnAdd.configure(state=DISABLED)
    for i in range(6):
        if i == 0:
            b = Entry(root, width=massiv_a[0][i]['width'])
            b.insert(END, kolvo_yacheek + 1)
            # b.bind("<Button-1>", lambda event, i=i: show_row(event, nomer_row))
            b.grid(row=lastrow, column=i)
            massiv_nomera.append(b)
        else:
            b = Entry(root, width=massiv_a[0][i]['width'], readonlybackground='white', state='readonly')
            b.grid(row=lastrow, column=i)
            c.append(b)

    print("last1: " + str(lastrow))
    massiv_a.append(c)
    lastrow += 1
    for i in range(lastrow):
        if i == 0:
            pass
        else:
            massiv_a[i][0].bind("<Button-1>", lambda event, i=i: show_row(event, i))
            massiv_a[i][1].bind("<Button-1>", lambda event, i=i: show_row(event, i))
            massiv_a[i][2].bind("<Button-1>", lambda event, i=i: show_row(event, i))
            massiv_a[i][3].bind("<Button-1>", lambda event, i=i: show_row(event, i))
            massiv_a[i][4].bind("<Button-1>", lambda event, i=i: show_row(event, i))
    flag = False
    print("last2: " + str(lastrow))
    EnableAll()
    txt_list[0].focus()
    txt_list[-1].configure(readonlybackground='white', state='readonly')
    btnCopy.configure(state=NORMAL)
    btnAdd.configure(state=DISABLED)
    print("lastrow: " + str(lastrow))
    kolvo_yacheek += 1
    print("kolvo_yacheek: " + str(kolvo_yacheek))
    clearAll()
    edit_or_add = 1


defaultcells()


def quit():
    root.destroy()


intS = 1
intF = 0


def copy():
    global intF, txt_list, intS
    if edit_or_add == 1:
        print("intF: " + str(intF))
        if (len(txt_list[0].get()) == 0 or len(txt_list[1].get()) == 0 or len(txt_list[2].get()) == 0 or len(
                txt_list[3].get()) == 0 or len(txt_list[4].get()) == 0):
            EnableAll()
            txt_list[0].focus()
            messagebox.showerror("Ошибка", "Заполните все поля")
            return
        else:
            for i in range(5):
                massiv_a[intS][intF].configure(state=NORMAL)
                massiv_a[intS][intF].insert(END, txt_list[i].get())
                massiv_a[intS][intF].configure(readonlybackground='white', state='readonly')
                print("intF: " + str(intF))
                intF += 1
        for i in range(len(txt_list)):
            massiv_file.append(txt_list[i].get())
        btnAdd.configure(state=NORMAL)
        btnCopy.configure(state=DISABLED)
        clearAll()
        disableAll()
        intF = 0  # индекс 0 - первый после номера
        print("intS1: " + str(intS))
        intS += 1
        print("intS2: " + str(intS))
        btnZapis.config(state=NORMAL)
        # btnChange.config(state=NORMAL)
        btnPerezapis.config(state=NORMAL)
    elif edit_or_add == 0:
        global my_lines
        my_lines[present_row - 1][0] = txt_list[0].get()
        my_lines[present_row - 1][1] = txt_list[1].get()
        my_lines[present_row - 1][2] = txt_list[2].get()
        my_lines[present_row - 1][3] = txt_list[3].get()
        my_lines[present_row - 1][4] = txt_list[4].get()
        getfromfile()


def EnableAll():
    for i in range(len(txt_list)):
        txt_list[i].configure(readonlybackground='white', state=NORMAL)


def clearAll():
    for i in range(len(txt_list)):
        txt_list[i].delete(0, END)


def disableAll():
    for i in range(len(txt_list)):
        txt_list[i].configure(readonlybackground='white', state='readonly')
    txt_list[-1].configure(disabledbackground='white', state=DISABLED)


def show_row(event, number):
    global present_row
    past_row = present_row
    present_row = number
    print("present: " + str(present_row))
    EnableAll()
    clearAll()
    for i in range(len(txt_list)):
        txt_list[i].insert(END, massiv_a[number][i].get())
    massiv_nomera[number - 1].configure(state=NORMAL)
    if massiv_nomera[past_row - 1].cget("readonlybackground") == 'lightgreen':
        massiv_nomera[past_row - 1].config(readonlybackground='white')  # ,state='readonly')
        print("выполнилось")
    massiv_nomera[number - 1].configure(readonlybackground='lightgreen')
    massiv_nomera[number - 1].config(state='readonly')
    disableAll()


def writetofile():
    global MyFile, my_lines,flag
    f = open(MyFile, "a", encoding='utf-8')
    # asd = f.readlines()
    for i in range(len(massiv_file)):
        if massiv_file[i] == "Есть" or massiv_file[i] == "Нет":
            f.write(massiv_file[i] + " ")
            f.write("\n")
        else:
            f.write(massiv_file[i] + " ")
    f.close()


    with open(MyFile, "r", encoding='utf-8') as file:
        my_lines = file.readlines()
        my_lines = [x.split() for x in my_lines]
        print(my_lines)
        file.close()

# d = 1
# mn = 0
def getfromfile():
    global my_lines, lastrow, kolvo_yacheek, massiv_nomera,intF,intS
    c = []

    with open(MyFile, "r", encoding='utf-8') as file:
        my_lines = file.readlines()
        my_lines = [x.split() for x in my_lines]
        print(my_lines)
        file.close()
    content_len = len(my_lines)
    if content_len >= lastrow:
        for i in range((content_len + 1) - lastrow):
            addcells()
            intS += 1
        btnAdd.config(state=NORMAL)
    for row in massiv_a:
        for ent in row:
            ent.config(state=NORMAL)
    for i in range(content_len):
        for j in range(5):
            massiv_a[i + 1][j].delete(0, END)
            massiv_a[i + 1][j].insert(0, my_lines[i][j])

    for row in massiv_a:
        for ent in row:
            ent.config(state="readonly")
    # with open (MyFile,"r",encoding='utf-8') as file:


def change():
    global edit_or_add
    btnCopy.config(state=NORMAL)
    for nk in txt_list:
        nk.config(state=NORMAL)
    edit_or_add = 0
def perezapis():
    global flag
    f = open(MyFile, "w", encoding='utf-8')
    # asd = f.readlines()
    for i in range(len(massiv_file)):
        if massiv_file[i] == "Есть" or massiv_file[i] == "Нет":
            f.write(massiv_file[i] + " ")
            f.write("\n")
        else:
            f.write(massiv_file[i] + " ")
    f.close()

btnAdd = Button(text="Добавить", command=addcells, width=13, font="Arial 12")
btnAdd.place(x=680, y=70)
btnCopy = Button(text="Записать", width=13, command=copy, font="Arial 12")
btnCopy.place(x=680, y=110)
btnZapis = Button(text="В файл", width=13, font="Arial 12", command=writetofile, state=DISABLED)
btnZapis.place(x=680, y=150)
btnGet = Button(text="Из файла", width=13, font="Arial 12", command=getfromfile)
btnGet.place(x=680, y=190)
btnChange = Button(text="Изменить", width=13, font="Arial 12", command=change, state=DISABLED)
btnChange.place(x=680, y=230)
btnPerezapis = Button(text="Перезаписать",width = 13,font="Arial 12",command = perezapis,state=DISABLED)
btnPerezapis.place(x=680,y=270)
# btnDelete = Button(text="Удалить", width=10, font="Arial 12")
# btnDelete.place(x=680, y=230)
btnExit = Button(text="Выход", width=10, command=quit, font="Arial 12")
btnExit.place(x=680, y=380)
"||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||"
FamTxt = Entry()
FamTxt.place(x=120, y=400)
SrokTxt = Entry()
SrokTxt.place(x=120, y=450)
CountryTxt = Entry()
CountryTxt.place(x=420, y=400)
PriceTxt = Entry()
PriceTxt.place(x=420, y=450)
"|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||0||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||"
lblFam = Label(text="Наименование: ", font="Arial 12")
lblFam.place(x=0, y=395)
lblSro = Label(text="Срок хранения: ", font="Arial 12")
lblSro.place(x=0, y=445)
lblCountry = Label(text="Страна: ", font="Arial 12")
lblCountry.place(x=350, y=395)
lblPrice = Label(text="Цена: ", font="Arial 12")
lblPrice.place(x=365, y=445)
"||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||"
myspinbox = Spinbox(values=("Есть", "Нет"))
txt_list = [FamTxt, SrokTxt, CountryTxt, PriceTxt, myspinbox]
myspinbox.place(x=350, y=500)
disableAll()
btnCopy.configure(state=DISABLED)
root.mainloop()