I have a snippet which creates an OptionMenu widget.
OptionMenu
... options = (\'White\', \'Grey\', \'Black\', \'Red\', \'Orange\', \'Yellow\'
To the best of my knowledge, you can use optionmenu.config(width=) as follows:
optionmenu.config(width=)
... optionmenu = OptionMenu(par, var, *options) optionmenu.config(width=) optionmenu.grid(column=column, row=row) ...