Martin Cooper added the comment:
I think you are confusing the perspective of the implementor with that of the
typical developer _using_ the toolkit without reading through its source code.
In my tkinter applications, I pretty much always use ttk widgets where they are
available
New submission from Martin Cooper :
Attempting to use a ttk.Frame with wm_manage() causes a TclError:
_tkinter.TclError: window ".!frame" is not manageable: must be a frame,
labelframe or toplevel
The (Tcl) documentation for wm manage states "Only frame, labelframe and
tople
