Tkinter only: table widget with canvas...

[John Posner]

>> There's a working app at http://cl1p.net/tkinter_table_headers/
> Thank you for this example. However, one issue to that...
> When resizing the window (vertical) then the header moves away
> from the table. How can I avoid this with the grid? With "pack"
> I now this...

Oops ... packing can be tricky. Try these modifications:

   header_frm.pack(side=TOP, anchor=W, expand=False)
    ...
   table_frm.pack(side=TOP, expand=True, fill=BOTH)

You also might try constraining the top-level (root) window, using these 
methods:

  rt.geometry(XXX, YYY)
  rt.resizable(False, True)

-John