Si tu pouvais jeter un oeil à mon code :

notebook = Pmw.NoteBook(self.root)
self._widgets['main_notebook'] = notebook
notebook.grid(column=0,row=0,sticky='NSWE')

## Add the "Appearance" page to the notebook ##
for name in ("Data", "Trace", "Exit") :
page = notebook.add(name)

## Create the group menu ##
## Cell 1 - Input
group_input = Pmw.Group(notebook.page(0), tag_text='Input')
group_input.grid(column = 0, row = 1, columnspan = 2, sticky ='NSEW', padx = defaultPadding, pady = defaultPadding, ipadx = defaultPadding, ipady = defaultPadding)

## Cell 2 - Iccap Param
group_iccap = Pmw.Group(notebook.page(0), tag_text='Iccap Param')
group_iccap.grid(column = 1, row = 1, rowspan = 2, sticky ='NSEW', padx = defaultPadding, pady = defaultPadding, ipadx = defaultPadding, ipady = defaultPadding)


Rien que ça, je ne vois pas mes groupes entièrement.
Je distingue juste 'Ic' du 2ème groupe et rien du premier groupe.
Merci