nickgeova...@gmail.com wrote: > Using python 3.4.2. > Tcl/tk example here is from /usr/share/tk8.5/demos/widget and > .../menu.tcl. The way tcl/tk adds cascaded radiobuttons to a menu is like > this: set m $w.menu.cascade > $w.menu add cascade -label "Cascades" -menu $m -underline 0 > .... > $m add cascade -label "Radio buttons" -menu $w.menu.cascade.radio... > set m $w.menu.cascade.radio > $m add radio -label "Roman" -variable style... > $m add radio -label "Italic" -variable style... > > ...and so on. > > My difficulty doing the same in PyTk is the following: When creating that > uppermost cascade, you do something like menu.add_cascade(label = > "Cascades") ...but there is no ability to save a usable reference to that > top-level cascade. If I do so anyway and add a radiobutton to it, nothing > appears, no errors either. What is the correct way to cascade radiobuttons > from a cascaded menu in PyTk? Thanks....Nick
You build the inner menu and then add it to the outer. After looking into the examples in the Demo/tkinter folder of the Python 2.7 source distribution I came up with the following: import tkinter from tkinter import Menu root = tkinter.Tk() menubar = Menu(root) editmenu = Menu(menubar) editmenu.add_command(label="Cut") editmenu.add_command(label="Copy") editmenu.add_command(label="Paste") fontmenu = Menu(editmenu, name="font") fontmenu.add_command(label="Family") fontmenu.add_command(label="Size") editmenu.add_cascade(label="Font", menu=fontmenu) colormenu = Menu(editmenu, name="color") colormenu.add_radiobutton(label="Red") colormenu.add_radiobutton(label="Yellow") colormenu.add_radiobutton(label="Blue") fontmenu.add_cascade(label="Color", menu=colormenu) menubar.add_cascade(label="Edit", menu=editmenu) root["menu"] = menubar root.mainloop() -- https://mail.python.org/mailman/listinfo/python-list
