надо сделать чтобы добавляло при "из файла"

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("800x600")
lastrow = 0
a = []
massiv_file = []
massiv_nomera = []
present_row = 0
massiv_a = []
indeks_intselect = 0
kolvo_yacheek = 0
MyFile = "qwerty.txt"
my_lines = []

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
    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))

    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()


defaultcells()

def quit():
    root.destroy()

intS = 1
intF = 0

def copy():
    global intF, txt_list, intS
    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)

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
    print("numberclick: " + str(number))
    past_row = present_row
    present_row = number
    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
    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()
    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
    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:
    #     lastrow += 1
    #     for i in range(content_len):
    #         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)
    #     massiv_a.append(c)
    #     # lastrow+=1
    #     kolvo_yacheek+=1
    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:


btnAdd = Button(text="Добавить", command=addcells, width=10, font="Arial 12")
btnAdd.place(x=680, y=70)
btnCopy = Button(text="Записать", width=10, command=copy, font="Arial 12")
btnCopy.place(x=680, y=110)
btnZapis = Button(text="В файл", width=10, font="Arial 12",command = writetofile,state=DISABLED)
btnZapis.place(x=680, y=150)
btnGet = Button(text="Из файла", width=10, font="Arial 12",command = getfromfile)
btnGet.place(x=680, y=190)
# 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()