Messagebox, Menubutton, Menu, Checkbutton, add

Note that Menubutton is obsolete (a nice way of saying it is probably going to be deprecated soon) according to Python.org,  Having said that…..

You don’t need to use a whole messagebar if you have just a simple menu but it seems to me the menubutton makes things a lot more complicated and actually does not free up much if any screen geography.  Maybe there is a point to it that I am missing – would really love to hear from somebody who has an opinion.  Be that as it may, here is an example of how it works using a general idea borrowed from Shipman.

Actually, this demo is as much about Checkbutton and Messagebox – Messagebox is not a widget but a separate module –   as it is about Menubutton.

#Testing menubutton, menu, add, chekbutton, messagebox
#standard set up header code 2 
from tkinter import *
root = Tk()
root.attributes('-fullscreen', True)
root.configure(background='SteelBlue4')
scrW = root.winfo_screenwidth()
scrH = root.winfo_screenheight()  
workwindow = str(1024) + "x" + str(768)+ "+" +str(int((scrW-1024)/2)) + "+" +str(int((scrH-768)/2))
top1 = Toplevel(root, bg="light blue")
top1.geometry(workwindow)
top1.title("Top 1 - Workwindow")
top1.attributes("-topmost", 1)  # make sure top1 is on top to start
root.update()                   # but don't leave it locked in place
top1.attributes("-topmost", 0)  # in case you use lower or lift
#exit button - note: uses grid
b3=Button(root, text="Egress", command=root.destroy)
b3.grid(row=0,column=0,ipadx=10, ipady=10, pady=5, padx=5, sticky = W+N)
#____________________________
from tkinter import messagebox

def mboxcondiments():
    msgStr='mayo: '+str(mayoVar.get())+" ketchup: "+str(ketchVar.get())
    messagebox.showinfo("About Condiments", msgStr, parent=top1)
    
myMb= Menubutton (top1, text="Condiments", indicatoron=True, justify="left") #first have to create a menubutton
myMb.pack(anchor=W)  #pack(anchor=W) works

myMb.menu= Menu(myMb, tearoff=0 ) # create a menu as a child of your Menubutton
print("type: "+ str(type(myMb["menu"]))) # only doing that is not enough
print("->: "+ str(myMb["menu"]))  # see on your console the string is bland
myMb["menu"] =  myMb.menu  # set the menu attribute of your Menubutton
print("type: "+ str(type(myMb["menu"]))) #it still comes off as a string
print("->: "+ str(myMb["menu"])) # but the string is now a pathname
mayoVar= IntVar()
mayoVar.set(0)  #0 or 1 - defines state
ketchVar= IntVar()
mayoVar.set(0)
               # add can be cascade, checkbutton, radiobutton, separator, or command
myMb.menu.add_checkbutton (label="mayo", variable= mayoVar, command= mboxcondiments)
myMb.menu.add_checkbutton (label="ketchup", variable= ketchVar, command=mboxcondiments)

myMb.pack()

#____________________________
root.mainloop()