[Python] Passif button-1 event to postgresql function

I want to pass a button clicked event to a postgresql function. Then, I want to use the event passed

to identify the combobox I left-clicked on so that I could insert an item selected from a listbox to that combobox. Here is the my codes:

from tkinter import *
from tkinter import ttk

def show_combo_screen():
ecran_combo_cptes=Tk()
ecran_combo_cptes.geometry('300x200')

my_label=Label(ecran_combo_cptes, text='Click on a dropdown to show
choices')

my_label.pack(pady=20)

combo1=ttk.Combobox(ecran_combo_cptes, state='disabled')
combo1.pack(pady=20)

combo2=ttk.Combobox(ecran_combo_cptes, state='disabled')
combo2.pack(pady=20)

def show_listbox_of_choices(event):
window = Toplevel()

my_list_var=StringVar()
my_list=Listbox(window,listvariable=my_list_var, width=35,
selectmode='browse')

my_list.pack(pady=20)

option_lists=['CHOICE1','CHOICE2','CHOICE3','CHOICE4']

for item in option_lists:
my_list.insert(END, item)

def validate_selected_cpte(event):
combo_clicked=event.widget

# Add choice to combobox
combo_clicked.configure(values=[my_list.get(ANCHOR)])
combo_clicked.current(0)

btn=Button(window, text='Validate choice',
command=lambda:validate_selected_cpte(event))

btn.pack(side='right')

combo1.bind('<Button-1>',show_listbox_of_choices)
combo2.bind('<Button-1>',show_listbox_of_choices)

show_combo_screen()


I read Postgresql document and tried to find an answer related to my issue on this website, I could not find anything. My issue is that, I do not know what datatype to pass to the function for that kind of

event.

Thanks in advance for answers!

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