Welcome folks today in this blog post we will be adding popup submenu bar with menu items in gui desktop app in python. All the full source code of the application is given below.

Get Started

In order to get started you need to install the below library using the pip command as shown below

pip install wxpython

After installing this library you need to make an app.py file and copy paste the following code

app.py

import wx

class MyFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, -1,
                          "Sub-menu Example")
        p = wx.Panel(self)
        menu = wx.Menu()

        submenu = wx.Menu()
        submenu.Append(-1, "Sub-item 1")
        submenu.Append(-1, "Sub-item 2")
        menu.AppendMenu(-1, "Sub-menu", submenu)
        
        menu.AppendSeparator()
        exit = menu.Append(-1, "Exit")
        self.Bind(wx.EVT_MENU, self.OnExit, exit)
                  
        menuBar = wx.MenuBar()
        menuBar.Append(menu, "Menu")
        self.SetMenuBar(menuBar)
        

    def OnExit(self, event):
        self.Close()
        

if __name__ == "__main__":
    app = wx.PySimpleApp()
    frame = MyFrame()
    frame.Show()
    app.MainLoop()

If you execute the above python script by typing the below command

python app.py