Unable to count the number of tries in guessing game.

[Frankduc]

Hello,

pyscript is crashing if count = 0 declare inside def check(guess):
otherwise i get local variable 'count' referenced before assignment

import tkinter
from random import randint
from tkinter import messagebox


low = 0
high = 10
rand = randint(low,high)
print(rand)
essai = 10
count = 0
def check(guess):
    while(guess!=rand):
        if guess < rand:
            txtMess.configure(text = 'Trop bas')

        elif guess > rand:
            txtMess1.configure(text = 'Trop haut')

        else:
            txtMess2.configure(text = f"Bravo! {guess} est le bon nombre")
        count = count + 1


    print('count',count)

tk = tkinter.Tk()
tk.title('Deviner le nombre')

label = tkinter.Label(tk, text = f"Devinez un nombre entre {low} et {high} inclusivement")
label.pack()

entry =  tkinter.Entry(tk)
entry.pack()

button = tkinter.Button(tk, text = 'Devine', command = lambda: check(int(entry.get())) )
button.pack()

txtMess = tkinter.Label(tk, text = "")
txtMess.pack()

txtMess1 = tkinter.Label(tk, text = "")
txtMess1.pack()

txtMess2 = tkinter.Label(tk, text = "")
txtMess2.pack()

tk.mainloop()

Any explaination for that?
BTW anyone know a good compiler easy to use and light to install?

Thank you