from tkinter import *
from tkinter import ttk
root = Tk()
root.geometry("700x400")
height = 5
lastrow = 0
a = []
frame1 = Frame(root)
def addcells():
    global lastrow
    for i in range(5):
        b = Entry(root)
        b.grid(row=lastrow,column = i)
        a.append(b)
    lastrow+=1
for i in range(5):
    addcells()

root.mainloop()