CODE EXAMPLE FOR PYTHON

9x9 grid tkinter

cells = {}
for row in range(9):
    for column in range(9):
        cell = Frame(center, bg='white', highlightbackground="black",
                     highlightcolor="black", highlightthickness=1,
                     width=100, height=100,  padx=3,  pady=3)
        cell.grid(row=row, column=column)
        cells[(row, column)] = cell