How can I format this correctly so it refers correctly to an array value?

Question

from tkinter import *
import numpy as np

window = Tk()

window.title("3 X 3 Game")

btarray = np.full((3, 3), "red", dtype='str')

arfinal = []

def clickbutton(arvalue):
    print (arvalue)
    if btarray[arvalue] == "red":
        btarray[arvalue] = "green"
    else:
        btarray[arvalue] = "red"

btn = Button(window, bg=btarray[0, 0], activebackground="blue", height=5, width=10, command= clickbutton("0, 0"))

the print returns 0, 0 which is the correct value for the first entry in the array, but I can't get it to accept this and change that array value, I get the error:

IndexError: only integers, slices (`:`), ellipsis (`...`), numpy.newaxis (`None`) and integer or boolean arrays are valid indices

I'm sure it has something to do with formatting and data types of the 0, 0 value in arvalue, but I have no idea how to fix it.

Answer 1

Is this what you want

from tkinter import *
import numpy as np

window = Tk()

window.title("3 X 3 Game")

btarray = np.full((3, 3), "red")
arfinal = []

def clickbutton(arvalue):
    a,b=arvalue.split(',')
    a,b=int(a),int(b)
    if btarray[a,b] == "red":
        btarray[a,b] = "green"
    else:
        btarray[a,b] = "red"
    print(btarray)

btn = Button(window, activebackground="blue", height=5, width=10, command= lambda: clickbutton("0, 0"))
btn.pack()
window.mainloop()

Answer 2

Using clickbutton(0,0) or clickbutton([0,0]) and then in the function use btarray[arvalue[0],arvalue[1]] will work?

Because right now you are passing a string as index not an Array of 2 values.

To solve your second issue about the string "Red" to "green" check this Weird behaviour initializing a numpy array of string data