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[Tkinter] CTkScrollableDropdown error: bad window path name ".!ctkscrollabledropdown"
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[Tkinter] CTkScrollableDropdown error: bad window path name ".!ctkscrollabledropdown"
#1
Hello! I'm using tkinter, customtkinter (ctk), and CTkScrollableDropdown (ctksd). This last library adds the ability to easily implement scrollable dropdown menus to various ctk elements. I followed ctksd's installation instructions, imported the library, and called the CTkScrollableDropdown class after my ctk element like in their example. However, I'm getting this error after I delete the widget. The error keeps spamming with every interaction with the GUI thereafter.

Error:
Exception in Tkinter callback Traceback (most recent call last): File "C:\Users\walde\AppData\Local\Programs\Python\Python310\lib\tkinter\__init__.py", line 1921, in __call__ return self.func(*args) File "C:\Users\walde\Desktop\Benjamin\Engineering\Contracts\20240202_client management software\src\v1\CTkScrollableDropdown\ctk_scrollable_dropdown.py", line 51, in <lambda> self.attach.winfo_toplevel().bind("<ButtonPress>", lambda e: self._withdraw() if not self.disable else None, add="+") File "C:\Users\walde\Desktop\Benjamin\Engineering\Contracts\20240202_client management software\src\v1\CTkScrollableDropdown\ctk_scrollable_dropdown.py", line 140, in _withdraw if self.winfo_viewable() and self.hide: File "C:\Users\walde\AppData\Local\Programs\Python\Python310\lib\tkinter\__init__.py", line 1267, in winfo_viewable self.tk.call('winfo', 'viewable', self._w)) _tkinter.TclError: bad window path name ".!ctkscrollabledropdown"
MRE:
import tkinter as tk
import customtkinter as ctk
import CTkScrollableDropdown as ctksd

def clear_screen_widgets(): # deletes all present widgets
    widgets = root.winfo_children() # Get a list of all the widgets in root
    for widget in widgets:
        widget.destroy()

def goto_screen_client_info_2(values):
    clear_screen_widgets()

root = ctk.CTk()

combobox_client_info_1 = ctk.CTkComboBox(master=root, values='foo')
combobox_client_info_1.place(relx=0.5, rely=0.33, relwidth=.4, anchor=tk.CENTER)
combobox_client_info_1.bind("<Return>", goto_screen_client_info_2) # run command when enter key is pressed
ctksd.CTkScrollableDropdown(combobox_client_info_1, values='foo', justify="left", button_color="transparent", autocomplete=True)

root.mainloop()
I suspect this might have to do with the fact that no parent is passed to CTkScrollableDropdown. Any ideas? Is there a safer method for deleting a widget that doesn't lead to this error?
Reply
#2
You should post your issue with the package on github.

It appears to work ok as long as you don't try to delete the dropdown window. There is no problem with deleting the combobox. Why are you deleting widgets anyway?
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