[Tkinter] Python - help with making a lift

[admiralsulko]

I came on a little solution but Im getting this error

Output:
>>> Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Users\Dominik\AppData\Local\Programs\Python\Python37\lib\tkinter\__init__.py", line 1702, in __call__
    return self.func(*args)
  File "C:\Users\Dominik\Desktop\INF - Výťah\Výťah.py", line 103, in prikaz1
    zobrazenie()
  File "C:\Users\Dominik\Desktop\INF - Výťah\Výťah.py", line 34, in zobrazenie
    canvas.pack(img2)
  File "C:\Users\Dominik\AppData\Local\Programs\Python\Python37\lib\tkinter\__init__.py", line 2140, in pack_configure
    + self._options(cnf, kw))
  File "C:\Users\Dominik\AppData\Local\Programs\Python\Python37\lib\tkinter\__init__.py", line 1317, in _options
    cnf = _cnfmerge(cnf)
  File "C:\Users\Dominik\AppData\Local\Programs\Python\Python37\lib\tkinter\__init__.py", line 101, in _cnfmerge
    for c in _flatten(cnfs):
TypeError: object of type 'int' has no len()

=========== RESTART: C:\Users\Dominik\Desktop\INF - Výťah\Výťah.py ===========

Solution looks like this:

def zmazanie():
    canvas.delete(img1)





def zobrazenie():
    global y_vytah
    if y_vytah > 330:
        picture2 = tkinter.PhotoImage(file = "C:/Users/Dominik/Desktop/INF - Výťah/tabulka1poschodie.png")
        img2 = canvas.create_image(720, 300, image = picture2)
        canvas.pack(img2)


def prikaz1():
    posun_1()
    zmazanie()
    zobrazenie()

But I cant get on thing like if it will come to position I want it will display the image...