entry box with the automatic listbox

 Here in this coding we are going to show the entry connected with the listbox in python.

so here is the following coding as respective to the needs.

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import tkinter as tk

def on_change(*args):

    # print(args)

    value = var_text.get()

    value = value.strip().lower()

    # get data from test_list

    if value == '':

        data = test_list

    else:

        data = []

        for item in test_list:

            if value in item.lower():

                data.append(item)

                # update data in listbox

    listbox_update(data)

def listbox_update(data):

    # delete previous data

    listbox.delete(0, 'end')

    # sorting data

    data = sorted(data, key=str.lower)

    # put new data

    for item in data:

        listbox.insert('end', item)

def on_select(event):

    # display element selected on list

    print('(event) previous:', event.widget.get('active'))

    print('(event)  current:', event.widget.get(event.widget.curselection()))

    print('---')

# --- main ---

test_list = ('apple', 'banana', 'Cranberry', 'dogwood', 'alpha', 'Acorn', 'Anise', 'Strawberry')

root = tk.Tk()

var_text = tk.StringVar()

var_text.trace('w', on_change)

entry = tk.Entry(root, textvariable=var_text)

entry.pack()

listbox = tk.Listbox(root)

listbox.pack()

# listbox.bind('<Double-Button-1>', on_select)

listbox.bind('<<ListboxSelect>>', on_select)

listbox_update(test_list)

root.mainloop()