New submission from Jason Yang <jason990...@outlook.com>:
In python(3.8.10)/tkinter(8.6.9), it won't generate "<<TreeviewSelect>>" event if we delete selected item of ttk.Treeview, but it will for python(3.9.9/3.10.1)/tkinter(8.6.12). Check it just by clicking 'Delete Item 1' button in following demo code ```python import sys from random import randint from datetime import datetime import tkinter as tk from tkinter import ttk def button_callback(): button.configure(state='disabled') treeview.delete(1) def treeview_callback(event): print(datetime.now().strftime("%H:%M:%S"), "Treeview selection changed !") print(f"Python version : {sys.version.split(' ')[0]}") print(f"tkinter version: {tk.Tcl().eval('info patchlevel')}") columns = ('President', 'Birthday') data = [ ('Ronald Reagan', 'February 6'), ('Abraham Lincoln', 'February 12'), ('George Washington', 'February 22'), ('Andrew Jackson', 'March 15'), ('Thomas Jefferson', 'April 13'), ] root = tk.Tk() treeview = ttk.Treeview(root, columns=columns, height=5, show='headings') treeview.pack() for column in columns: treeview.heading(column, text=column) treeview.column(column, width=150) for i, row in enumerate(data): treeview.insert('', i, iid=i, text=str(i), values=row) treeview.selection_set(1) button = tk.Button(root, text='Delete Item 1', command=button_callback) button.pack() treeview.bind("<<TreeviewSelect>>", treeview_callback) root.mainloop() ``` ```python d:\>python test3.py Python version : 3.8.10 tkinter version: 8.6.9 17:57:43 Treeview selection changed ! d:\>python test3.py Python version : 3.9.9 tkinter version: 8.6.12 17:58:10 Treeview selection changed ! 17:58:11 Treeview selection changed ! d:\>python test3.py Python version : 3.10.1 tkinter version: 8.6.12 18:01:10 Treeview selection changed ! 18:01:12 Treeview selection changed ! ``` ---------- components: Tkinter messages: 409185 nosy: Jason990420 priority: normal severity: normal status: open title: Delete selected item generate "<<TreeviewSelect>>" event or not in different version of tkinter or Python type: behavior versions: Python 3.10, Python 3.8, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46179> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com