The line that should not have been needed on macOS tk 8.6.8 but was,
should not be a problem on Ubuntu, but is. It is not needed on macOS
tk 8.6.11, installed with 3.10. Disable it but leave it for
now in case some system needs it.
scrollbar.config(command=listbox.yview)
scrollbar.pack(side=RIGHT, fill=Y)
listbox.pack(side=LEFT, fill=BOTH, expand=True)
- acw.update_idletasks() # Need for tk8.6.8 on macOS: #40128.
+ #acw.update_idletasks() # Need for tk8.6.8 on macOS: #40128.
acw.lift() # work around bug in Tk 8.5.18+ (issue #24570)
# Initialize the listbox selection