CODEWITHSUNDEEP
pythontkinterinterfacefrontend
PrimeLearner
PrimeLearner

Reputation: 23

how to fix a "TCL error" in Tkinter Python ? working on Jupyter Notebook

i'm building a database application, currently working on the frontend interface and encountering a problem, trying to set a "scrollbar" on a 'listbox'. what do i need to do?

i use jupyter notebook and my demonstrator uses "Atom", do i need to import a certain function? i ran a previous code an "interactive converter" and it pops up its window along with this current code, so its confusing.....

from tkinter import *

# user interface

window = Tk()

list1 = Listbox(window, height=15, width=28)
list1.grid(row=3, column=0, rowspan=6, columnspan=3)

sb1 = Scrollbar(window)
sb1.grid(row=3, column=1)

list1.configure(window, yscrollcommand=sb1.set)
sb1.configure(command=list1.yview)

window.mainloop()

Error message:

TclError Traceback (most recent call last) in 48 sb1.grid(row=3,column=1) 49 ---> 50 list1.configure(platform,yscrollcommand=sb1.set) 51 sb1.configure(command=list1.yview) 52

~\Anaconda3\lib\tkinter__init__.py in configure(self, cnf, **kw)
1483 the allowed keyword arguments call the method keys.
1484 """ -> 1485 return self._configure('configure', cnf, kw) 1486 config = configure 1487 def cget(self, key):

~\Anaconda3\lib\tkinter__init__.py in _configure(self, cmd, cnf, kw) 1474 if isinstance(cnf, str): 1475 return self._getconfigure1(_flatten((self._w, cmd, '-'+cnf))) -> 1476 self.tk.call(_flatten((self._w, cmd)) + self._options(cnf)) 1477 # These used to be defined in Widget: 1478 def configure(self, cnf=None, **kw):

TclError: unknown option "-class"

Upvotes: 2

Views: 5308

Answers (2)

sadi_zobaer
sadi_zobaer

Reputation: 1

My code:

mybot = Tk()

mybot.geometry("300x600")
mybot.title("MyChatBot")

pic = PhotoImage(file = "bott.jpg")
img = Label(mybot, image = pic)

img.pack(pady = 10)

mybot.mainloop()

Generates this Error:

TclError: couldn't recognize data in image file "bott.jpg" my problem .couldnot solve yet.

Upvotes: 0

Henry Yik
Henry Yik

Reputation: 22493

You passed window as a parameter in list1.configure which is not required. Also you need to specify sticky location if you use grid on your scrollbar.

from tkinter import *

# user interface

window = Tk()

list1 = Listbox(window, height=15, width=28)
list1.grid(row=3, column=0)

for i in range(30):
    list1.insert(END,i) #dummy data

sb1 = Scrollbar(window)
sb1.grid(row=3, column=1,sticky="ns")

list1.configure(yscrollcommand=sb1.set)
sb1.configure(command=list1.yview)

window.mainloop()

Upvotes: 2

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