[Tkinter] Sudoku solver with tkinter

[flash77]

Hello,

I've got coding experience but I'm new to python.

I'm trying to generate a sudoku solver in python using tkinter. I found online the code - now I'm trying to link it with tkinter. The code uses the list bo - this list contains the entered values from the entries of tkinter.

How to pass the list "bo" to the solve function when the button "readin" is pressed?

I tried " bo=readin() " (line 91).

Here is the error description:
Traceback (most recent call last):
File "d:/Ordner/Python/testgrid2/testgrid2.py", line 91, in <module>
bo=readin()
File "d:/Ordner/Python/testgrid2/testgrid2.py", line 70, in readin
listrow0.append(Square[i].get())
IndexError: list index out of range

What I am doing wrong?

Thanks for your help!!

Greetings,

flash77

import tkinter as tk
from tkinter import Entry, IntVar, Tk

def solve(bo):
    find = find_empty(bo)
    if not find:
        print("Sudoku solved.")
        return True
    else:
        row, col = find

    for i in range(1,10):
        if valid(bo, i, (row, col)):
            bo[row][col] = i

            if solve(bo):
                return True

            bo[row][col] = 0

    return False

def valid(bo, num, pos):
    # Check row
    for i in range(len(bo[0])):
        if bo[pos[0]][i] == num and pos[1] != i:
            return False

    # Check column
    for i in range(len(bo)):
        if bo[i][pos[1]] == num and pos[0] != i:
            return False

    # Check box
    box_x = pos[1] // 3
    box_y = pos[0] // 3

    for i in range(box_y*3, box_y*3 + 3):
        for j in range(box_x * 3, box_x*3 + 3):
            if bo[i][j] == num and (i,j) != pos:
                return False

    return True

def find_empty(bo):
    for i in range(len(bo)):
        for j in range(len(bo[0])):
            if bo[i][j] == 0:
                return (i, j)  # row, col
    
    return None

def quit_frame():
    main.destroy()

Square = []
def SquareCreate(): 
    for j in range(0, 9):
        for i in range(0,9):
            data = IntVar()
            t = tk.Entry(main, textvariable=data, justify="center",font=("Arial",16))
            t.place(x=i*40+70, y=j*40+80, width=40, height=40)
            t.delete(0)
            Square.append(data)

def readin():
    listrow0 = []; listrow1 = []; listrow2 = []; listrow3 = []; listrow4 = []; listrow5 = []; listrow6 = []
    listrow7 = []; listrow8 = []
    for i in range(0,9):
        listrow0.append(Square[i].get())
    for i in range(9,18):
        listrow1.append(Square[i].get())
    for i in range(18,27):
        listrow2.append(Square[i].get())
    for i in range(27,36):
        listrow3.append(Square[i].get())
    for i in range(36,45):
        listrow4.append(Square[i].get())
    for i in range(45,54):
        listrow5.append(Square[i].get())
    for i in range(54,63):
        listrow6.append(Square[i].get())
    for i in range(63,72):
        listrow7.append(Square[i].get())
    for i in range(72,81):
        listrow8.append(Square[i].get())
    bo = []
    bo = [listrow0,listrow1,listrow2,listrow3,listrow4,listrow5,listrow6,listrow7,listrow8]
    return bo

bo=readin()

#mainprogramm
main = tk.Tk()
main.geometry("500x540")
main.resizable(width=0, height=0)
l=tk.Label(main, text="Sudoku Bruteforce Solver")
l["font"]="Arial"
l.place(x=150,y=0)
SquareCreate()
button1=tk.Button(main, text="quit", command = quit_frame)
button1.place(x=50,y=450)
button2=tk.Button(main, text="readin", command = readin)
button2.place(x=150,y=450)

solve(bo)

main.mainloop()