tkinter windows won't open now

i'm trying to make an AI that beat the snake so i decided to make the game and it worked but then i added some calculations and the tkinter windows won't open there is no errors my code is not perfect but it is here: (i worked on setoutput before it didn't work, avance is the main function and the function refresh refresh the screen)
from tkinter import*
from random import*
pp=0
neuron=[]
step=0
k=[]
score=0
n=[]
w=[]
for j in range (5):
    for i in range (5):
        n.append(0)
        for k in range (5):
            w.append([randint(-100000,100000)/1000000,randint(-100000,100000)/1000000])
print(n)
print(w)
highscore=0
fen=Tk()
fen.title('IA')
grille=[0 for i in range(100)]
canvas=Canvas(fen,width=1000,height=500,bg="white")
canvas.pack()
color=['blue','red','orange','yellow']
color2=['black','white']
def check(neuron):
    global grille
    return grille[neuron]
def setinput(a):
    global grille
    premiers=[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97,
              101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199,
              211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293,
              307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397,
              401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499,
              503, 509, 521, 523, 541]
    tt=1
    val=0
    for i in range (0+25*a,25+25*a):
        val+=1
        tt=tt*premiers[val]**grille[i]
    return tt

def setoutput():
    global n,w
    output=0
    inp=setinput(0)
    layer2=[]
    for i in range (5):
        for z in range(4):
            inp=setinput(z)
            v=w[i]
            fac=v[0]
            b=v[1]
            print (fac)
            print(b)
            print(inp)
            layer2.append(max(0,(float(inp)*float(fac)+float(b))))
    print(layer2)
    layer3=[]
    for i in range(5,10):
        for e in list(layer2):
            v=w[i]
            fac=v[0]
            b=v[1]
            layer3.append(max(0,(float(inp)*float(fac)+float(b))))
d=0
début=1
pos=44
stop=0
long=[]
grille[pos]=1

def refresh():
    global grille
    val=0
    canvas.delete('all')
    for y in range (10):
        for x in range (10):
            canvas.create_rectangle(x*500/10,y*500/10,x*500/10+500/10,y*(500/10)+500/10,fill=color[grille[val]],outline='black')
            val+=1
def refresh2():
    global a,color,tt,k,grille
    val=0
    canvas.create_text(550,100,text=('step:',step),fil='blue')
    canvas.create_text(750,200,text=('input:',setinput(0)),fil='blue')
    canvas.create_text(750,300,text=('input:',setinput(1)),fil='blue')
    canvas.create_text(750,400,text=('input:',setinput(2)),fil='blue')
    canvas.create_text(750,500,text=('input:',setinput(3)),fil='blue')
def restart():
    global grille,pos,long,d,val,stop,début,step
    d=0
    step=0
    pos=44
    if début==0:
        long=[pos]
        
    grille=[0 for i in range(100)]
    grille[pos]=1
    val=0
    stop=1
    canvas.delete('all')
    if début==0:
        pomme()
    if début==1:
        début=0
        avance()
def fin():
    global stop,grille
    stop=0
    restart()
def haut(event):
    global pos,long,grille
    grille[pos]=2
    long.append(pos)
    pos=pos-10
    if pos<-99:
        pos+=100
    if grille[pos]==2:
        fin()
    if grille[pos]==3:
        avanceup(1)
    grille[pos]=1
    refresh()

def bas(event):
    global pos,long,grille
    grille[pos]=2
    long.append(pos)
    pos=pos+10
    if pos>99:
        pos-=100
    if grille[pos]==2:
        fin()
    if grille[pos]==3:
        avanceup(1)
    grille[pos]=1
    refresh()

def gauche(event):
    global pos,long,grille
    grille[pos]=2
    long.append(pos)
    pos=pos-1
    if pos%10==9:
        pos+=10
    if pos<0:
        pos+=100
    if grille[pos]==2:
        fin()
    if grille[pos]==3:
        avanceup(1)
    grille[pos]=1
    refresh()
def droit(event):
    global pos,long,grille
    grille[pos]=2
    long.append(pos)
    pos=pos+1
    if pos%10==0:
        pos-=10
    if pos>0:
        pos-=100
    if grille[pos]==2:
        fin()
    if grille[pos]==3:
        avanceup(1)
    grille[pos]=1
    refresh()

    pass
def changeh(event):
    global d,grille
    d=2
def changeb(event):
    global d,grille
    d=0
def changed(event):
    global d,grille
    d=1
def changeg(event):
    global d,grille
    d=3
def avanceup(event):
    global d,long,grille,step
    step=0
    if d==0:
        bas(1)
    if d==1:
        droit(1)
    if d==2:
        haut(1)
    if d==3:
        gauche(1)
    fen.bind('z',changeh)
    fen.bind('s',changeb)
    fen.bind('d',changed)
    fen.bind('q',changeg)
    grille[long[0]]=0
    pomme()
def pomme():
    global grille,pp
    pp=randint(0,99)
    while grille[pp]==1 or grille[pp]==2:
        pp=randint(0,99)
    grille[pp]=3
    if grille[pp]!=3:
        fen.after(1,pomme)
def avance():
    global d,long,grille,step,score,highscore,pp,grille

    score=len(long)
    fen.after(100,avance)
    step+=1
    refresh2()
    if score<highscore:
        highscore=score
    if stop==1:
        if d==0:
            bas(1)
        if d==1:
            droit(1)
        if d==2:
            haut(1)
        if d==3:
            gauche(1)
        fen.bind('z',changeh)
        fen.bind('s',changeb)
        fen.bind('d',changed)
        fen.bind('q',changeg)
        grille[long[0]]=0
        del long[0]
        if grille[pp]!=3:
            grille[pp]=3
        score=len(long)
        setinput(0)
    if step>100:
        fin()
    refresh2()
    setoutput()
pomme()
restart()
val=0
setoutput()
fen.bind
fen.mainloop()
i tried to restart python, change the if conditions in avance() and change the order of functiun call at the end of the code.
Solution
You don't use this python filename.py. Just comment out all the prints.
Screenshot: