from tkinter import *
import random 

fenetre = Tk()

canvas = Canvas(fenetre, width=400, height=300, background='white')
canvas.grid()

def carre():
    x1 = random.randint(0,400)
    largeur_aleatoire = random.randint(10,30)
    x2 = x1 + largeur_aleatoire
    y1 = random.randint(0,300)
    y2 = y1 + largeur_aleatoire
    couleur = random.choice(["red", "green", "blue", "yellow", "grey"])
    if x2 > 400 or y2 > 300 or y1 == 0 or x1 == 0 or y1 == 300 or x1 == 400:
        while x2 > 400 or y2 >300 or y1 == 0 or x1 == 0 or y1 == 300 or x1 == 400:
            x1 = random.randint(0,400)
            x_intermédiaire = random.randint(10,30)
            x2 = x1 + x_intermédiaire
            y1 = random.randint(0,300)
            y2 = y1 + x_intermédiaire
            couleur = random.choice(["red", "green", "blue", "yellow", "grey"])
    else:
        carré = canvas.create_rectangle(x1, y1, x2, y2, fill= couleur, outline = couleur)
        canvas.grid()


bouton=Button(fenetre, text="Dessine", command= carre)
bouton.grid()

fenetre.mainloop()
fenetre.destroy()