How to make python wait for it's turn (tkinter) - python-3.x

Question

Right now the code executes executes the following "if statement" under the computer_move function *. I want it to wait for the player to click another button. Right now, the code places the x before the player clicks a button to place an "o".
import tkinter as tk
board = tk.Tk()
def player_move(widget):
if widget["o"] not in ("o", "x"):
widget["text"] = "o"
widget["state"] = "disabled"
computer_move()
def computer_move():
if i["text"] == "Open Space":
i["text"] = "x"
i["state"] = "disabled"
else:
c["text"] = "x"
c["state"] = "disabled"
if a["text"] and c["text"] == "x" or "o": # *
b["text"] = "x"
b["state"] = "disabled"
board.geometry("400x500")
board.title("Board")
buttons = []
a = tk.Button(board, text="x", state = "disabled")
a["command"] = lambda x=a:player_move(x)
a.grid(row=0, column = 0)
buttons.append(a)
board.mainloop()

Answer 1

Code doesn't set x but you do it in line
a = tk.Button(board, text="x", state= "disabled")
so remove text="x", state="disabled"
BTW:
widget["o"] is incorrect - button doesn't have property with name "o".
It has property "text" - widget["text"] - which may have value "o" or "x"
if a["text"] and c["text"] == "x" or "o": is rather incorrent. Especially
c["text"] == "x" or "o"
It has to be
c["text"] == "x" or c["text"] == "o"
or
c["text"] in ("x", "o")
I think you try to do
if a["text"] in ("x", "o") and c["text"] in ("x", "o"):
It is better to keep button on list - you can use for loop to check all buttons in computer_move
import tkinter as tk
# --- functions ---
def player_move(btn):
# if button is empty
if btn["text"] not in ("o", "x"):
# then set `o` and disable button
btn["text"] = "o"
btn["state"] = "disabled"
# and make comuter move
computer_move()
def computer_move():
# check all buttons
for btn in buttons:
# if button is empty
if btn["text"] not in ("o", "x"):
# then set `x` and disable button
btn["text"] = "x"
btn["state"] = "disabled"
# and skip checking other buttons
break
# --- main ---
board = tk.Tk()
board.geometry("400x500")
board.title("Board")
buttons = []
for row in range(3):
for col in range(3):
btn = tk.Button(board, width=1)
btn["command"] = lambda x=btn:player_move(x)
btn.grid(row=row, column=col)
buttons.append(btn)
board.mainloop()