We know that Tkinter has a built-in sel tag that applies a selection to a given text range. We want to apply this tag to the entire text in the widget.
We can simply define a function to handle this, as follows (2.05.py):
def select_all(event=None): content_text.tag_add('sel', '1.0', 'end') return "break"
After doing this, add a callback to the Select All menu item:
edit_menu.add_command(label='Select All', underline=7, accelerator='Ctrl+A', command=select_all)
We also need to bind the function to the Ctrl + A keyboard shortcut. We do this by using the following key bindings (2.05.py):
content_text.bind('<Control-A>', select_all)content_text.bind('<Control-a>', select_all)
The coding of the Select All