wxpython: can't even create a Panel

[John Salerno]

I'm using the sample code of the file 'simple.py' and trying to make a 
single window with a panel in it, but I keep getting an error. Here's my 
code: (I know I might need something else, like a Show() method for the 
panel, but the error stops on the first panel line anyway. I've tried a 
Layout() method but it didn't get that far).

import wx


class MyFrame(wx.Frame):

     def __init__(self, parent, title):
         wx.Frame.__init__(self, parent, -1, title)

     panel = wx.Panel(self)

class MyApp(wx.App):

     def OnInit(self):
         frame = MyFrame(None, 'My Test Frame')
         frame.Show(True)
         return True


app = MyApp()
app.MainLoop()

-----------------------
And the error:

 >>>

Traceback (most recent call last):
   File "C:\Python24\myscripts\wx_tests\wxtest.py", line 4, in -toplevel-
     class MyFrame(wx.Frame):
   File "C:\Python24\myscripts\wx_tests\wxtest.py", line 9, in MyFrame
     panel = wx.Panel(self)
NameError: name 'self' is not defined
 >>>

------------------

And if it helps, here is the code I'm using as a guide. It has the same 
panel line, but obviously something about my code is different for the 
'self' reference not to work:

#----------------------------------------------------------------------
# A very simple wxPython example.  Just a wx.Frame, wx.Panel,
# wx.StaticText, wx.Button, and a wx.BoxSizer, but it shows the basic
# structure of any wxPython application.
#----------------------------------------------------------------------

import wx


class MyFrame(wx.Frame):
     """
     This is MyFrame.  It just shows a few controls on a wxPanel,
     and has a simple menu.
     """
     def __init__(self, parent, title):
         wx.Frame.__init__(self, parent, -1, title,
                           pos=(150, 150), size=(350, 200))

         # Create the menubar
         menuBar = wx.MenuBar()

         # and a menu
         menu = wx.Menu()

         # add an item to the menu, using \tKeyName automatically
         # creates an accelerator, the third param is some help text
         # that will show up in the statusbar
         menu.Append(wx.ID_EXIT, "E&xit\tAlt-X", "Exit this simple sample")

         # bind the menu event to an event handler
         self.Bind(wx.EVT_MENU, self.OnTimeToClose, id=wx.ID_EXIT)

         # and put the menu on the menubar
         menuBar.Append(menu, "&File")
         self.SetMenuBar(menuBar)

         self.CreateStatusBar()


         # Now create the Panel to put the other controls on.
         panel = wx.Panel(self)

         # and a few controls
         text = wx.StaticText(panel, -1, "Hello World!")
         text.SetFont(wx.Font(14, wx.SWISS, wx.NORMAL, wx.BOLD))
         text.SetSize(text.GetBestSize())
         btn = wx.Button(panel, -1, "Close")
         funbtn = wx.Button(panel, -1, "Just for fun...")

         # bind the button events to handlers
         self.Bind(wx.EVT_BUTTON, self.OnTimeToClose, btn)
         self.Bind(wx.EVT_BUTTON, self.OnFunButton, funbtn)

         # Use a sizer to layout the controls, stacked vertically and with
         # a 10 pixel border around each
         sizer = wx.BoxSizer(wx.VERTICAL)
         sizer.Add(text, 0, wx.ALL, 10)
         sizer.Add(btn, 0, wx.ALL, 10)
         sizer.Add(funbtn, 0, wx.ALL, 10)
         panel.SetSizer(sizer)
         panel.Layout()


     def OnTimeToClose(self, evt):
         """Event handler for the button click."""
         print "See ya later!"
         self.Close()

     def OnFunButton(self, evt):
         """Event handler for the button click."""
         print "Having fun yet?"


class MyApp(wx.App):
     def OnInit(self):
         frame = MyFrame(None, "Simple wxPython App")
         self.SetTopWindow(frame)

         print "Print statements go to this stdout window by default."

         frame.Show(True)
         return True

app = MyApp(redirect=True)
app.MainLoop()