Question

I am fairly new to programming and to python and wxpython. I have looked over this code for literally HOURS and I tried finding an answer everywhere online. I am having trouble getting a new window to show up after a menu item is clicked. Here is my code so far…

import wx

class MainWindow(wx.Frame):

    def __init__(self,parent,id):
        wx.Frame.__init__(self,parent,id,'Python Test App',size=(600,400))
        panel=wx.Panel(self)
        wx.Frame.CenterOnScreen(self)
        ##wx.Frame.Maximize(self)

        status=self.CreateStatusBar()
        menubar=wx.MenuBar()
        file_menu=wx.Menu()
        edit_menu=wx.Menu()

        ID_FILE_NEW = 1
        ID_FILE_OPEN = 2

        ID_EDIT_UNDO = 3
        ID_EDIT_REDO = 4


        file_menu.Append(ID_FILE_NEW,"New Window","This is a new window")
        file_menu.Append(ID_FILE_OPEN,"Open...","This will open a new window")

        edit_menu.Append(ID_EDIT_UNDO,"Undo","This will undo your last action")
        edit_menu.Append(ID_EDIT_REDO,"Redo","This will redo your last undo")


        menubar.Append(file_menu,"File")
        menubar.Append(edit_menu,"Edit")
        self.SetMenuBar(menubar)

        self.Bind(wx.EVT_MENU, NewWindow.new_frame, None, 1)

class NewWindow(wx.Frame):

    def __init__(self,MainWindow,id):
        wx.Frame.__init__(self, None, id, 'New Window', size=(600,400))
        wx.Frame.CenterOnScreen(self)
        self.Show(False)

    def new_frame(self, event):
        NewWindow.Show(True)



if __name__=='__main__':
        app=wx.PySimpleApp()
        frame=MainWindow(parent=None,id=-1)
        frame.Show()
        app.MainLoop()

When I try to run this code, I get this error message once I click on the menu item “New Window”

TypeError: unbound method new_frame() must be called with NewWindow instance as first argument (got CommandEvent instance instead)

Again, I am fairly new to programming. Any help is greatly appreciated and also, I know my code may not be the “cleanest” looking code around. Thanks in advance!

Answer 1

Modifying your code to some extent i was able to show a new window when user clicks a New Window option,

Do check the stuff that i have modified a let me know if this is what you want??

import wx

class MainWindow(wx.Frame):

    def __init__(self,parent,id):
        wx.Frame.__init__(self,parent,id,'Python Test App',size=(600,400))
        panel=wx.Panel(self)
        wx.Frame.CenterOnScreen(self)

        status=self.CreateStatusBar()
        menubar=wx.MenuBar()
        file_menu=wx.Menu()
        edit_menu=wx.Menu()

        ID_FILE_NEW = 1
        ID_FILE_OPEN = 2

        ID_EDIT_UNDO = 3
        ID_EDIT_REDO = 4


        file_menu.Append(ID_FILE_NEW,"New Window","This is a new window")
        file_menu.Append(ID_FILE_OPEN,"Open...","This will open a new window")

        edit_menu.Append(ID_EDIT_UNDO,"Undo","This will undo your last action")
        edit_menu.Append(ID_EDIT_REDO,"Redo","This will redo your last undo")


        menubar.Append(file_menu,"File")
        menubar.Append(edit_menu,"Edit")
        self.SetMenuBar(menubar)

        self.Bind(wx.EVT_MENU, self.test, None, 1)

    def test(self, event):
        self.new = NewWindow(parent=None, id=-1)
        self.new.Show()

class NewWindow(wx.Frame):

    def __init__(self,parent,id):
        wx.Frame.__init__(self, parent, id, 'New Window', size=(400,300))
        wx.Frame.CenterOnScreen(self)
        #self.new.Show(False)

if __name__=='__main__':
        app=wx.PySimpleApp()
        frame=MainWindow(parent=None,id=-1)
        frame.Show()
        app.MainLoop()