Welcome folks today in this blog post we will be  displaying mdi child frame popup window  desktop app in python using frame class. 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 MDIFrame(wx.MDIParentFrame):
    def __init__(self):
        wx.MDIParentFrame.__init__(self, None, -1, "MDI Parent", 
                size=(600,400))
        menu = wx.Menu()
        menu.Append(5000, "&New Window")
        menu.Append(5001, "E&xit")
        menubar = wx.MenuBar()
        menubar.Append(menu, "&File")
        self.SetMenuBar(menubar)
        self.Bind(wx.EVT_MENU, self.OnNewWindow, id=5000)
        self.Bind(wx.EVT_MENU, self.OnExit, id=5001)

    def OnExit(self, evt):
        self.Close(True)

    def OnNewWindow(self, evt):
        win = wx.MDIChildFrame(self, -1, "Child Window")
        win.Show(True)

if __name__ == '__main__':
    app = wx.PySimpleApp()
    frame = MDIFrame()
    frame.Show()
    app.MainLoop()

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

python app.py