AttributeError: 'list' object has no attribute 'tk'

Question

I am learning tkinter from the book "Programming Python". In the section dedicated for scroll bars I have faced a problem that I was not able to fix.

from tkinter import *

class ScrolledList(Frame):
    def __int__(self, options, parent=None):
        Frame.__init__(self, parent)
        self.pack(expand=YES, fill=BOTH)
        self.makeWidgets(options)

    def hendleList(self, event):
        index=self.listbox.curselection()
        label=self.listbox.get(index)
        self.runCommand(label)

    def makeWidget(self, options):
        sbar=Scrollbar(self)
        list=Listbox(self, relief=SUNKEN)
        sbar.config(command=list.yview)
        list.config(yscrollcommand=sbar.set)
        sbar.pack(side=RIGHT, fill=Y)
        list.pack(side=LEFT, expand=YES, fill=BOTH)
        pos=0
        for label in options:
            list.insert(pos, label)
            pos+=1
        list.bind('<Double-1>', self.handleList)
        self.listbox = list

    def runCommand(self, selection):
        print('You selected:', selection)

if __name__ == '__main__':
    options=[('Luberjack-{}'.format(x)) for x in range(20)]
    ScrolledList(options).mainloop()

This is my code and the Error being arised:

Traceback (most recent call last):
File "C:/Users/User/PycharmProjects/untitled3/venv/scr_list.py", line 34, in <module>
ScrolledList(options).mainloop()
File "C:\Python37-32\lib\tkinter\__init__.py", line 2741, in __init__
Widget.__init__(self, master, 'frame', cnf, {}, extra)
File "C:\Python37-32\lib\tkinter\__init__.py", line 2289, in __init__
BaseWidget._setup(self, master, cnf)
File "C:\Python37-32\lib\tkinter\__init__.py", line 2259, in _setup
self.tk = master.tk
AttributeError: 'list' object has no attribute 'tk'

There was a similar problem before, but I have already called Frame __init__ in my code

Yes, you are right. Just edited – R.Temur Jul 20 '18 at 12:03 — R.Temur, Jul 20 '18 at 12:03
I checked that, but it didn`t solve my problem – R.Temur Jul 20 '18 at 12:07 — R.Temur, Jul 20 '18 at 12:07
You didn't follow the advice of their code though... – Joel Jul 20 '18 at 12:12 — Joel, Jul 20 '18 at 12:12

score 2 · Accepted Answer · answered Jul 20 '18 at 13:24

There were a few spelling errors: def __int__, makeWidget and hendleList. With those corrected it runs without error:

from tkinter import *

class ScrolledList(Frame):
    def __init__(self, options, parent=None):
        Frame.__init__(self, parent)
        self.pack(expand=YES, fill=BOTH)
        self.makeWidgets(options)

    def handleList(self, event):
        index=self.listbox.curselection()
        label=self.listbox.get(index)
        self.runCommand(label)

    def makeWidgets(self, options):
        sbar=Scrollbar(self)
        list=Listbox(self, relief=SUNKEN)
        sbar.config(command=list.yview)
        list.config(yscrollcommand=sbar.set)
        sbar.pack(side=RIGHT, fill=Y)
        list.pack(side=LEFT, expand=YES, fill=BOTH)
        pos=0
        for label in options:
            list.insert(pos, label)
            pos+=1
        list.bind('<Double-1>', self.handleList)
        self.listbox = list

    def runCommand(self, selection):
        print('You selected:', selection)

if __name__ == '__main__':
    options=[('Luberjack-{}'.format(x)) for x in range(20)]
    ScrolledList(options).mainloop()

AttributeError: 'list' object has no attribute 'tk'

1 Answers1