from wxPython.wx import *  
ID_ABOUT=101  
ID_OPEN=102 
ID_BUTTON1=110 
ID_EXIT=200 
class MainWindow(wxFrame):  
    def __init__(self,parent,id,title):  
        self.dirname='' 
        wxFrame.__init__(self,parent,-4, title, style=wxDEFAULT_FRAME_STYLE|  
                                        wxNO_FULL_REPAINT_ON_RESIZE)  
        self.control = wxTextCtrl(self, 1, style=wxTE_MULTILINE)  
        self.CreateStatusBar() # A Statusbar in the bottom of the window  
        # Setting up the menu.  
        filemenu= wxMenu()  
        filemenu.Append(ID_OPEN, "&Open"," Open a file to edit")  
        filemenu.AppendSeparator()  
        filemenu.Append(ID_ABOUT, "&About"," Information about this program")  
        filemenu.AppendSeparator()  
        filemenu.Append(ID_EXIT,"E&xit"," Terminate the program")  
        # Creating the menubar.  
        menuBar = wxMenuBar()  
        menuBar.Append(filemenu,"&File") # Adding the "filemenu" to the MenuBar  
        self.SetMenuBar(menuBar)  # Adding the MenuBar to the Frame content.  
        EVT_MENU(self, ID_ABOUT, self.OnAbout) 
        EVT_MENU(self, ID_EXIT, self.OnExit) 
        EVT_MENU(self, ID_OPEN, self.OnOpen) 
 
        self.sizer2 = wxBoxSizer(wxHORIZONTAL) 
        self.buttons=[] 
        for i in range(0,6): 
            self.buttons.append(wxButton(self, ID_BUTTON1+i, "Button &"+`i`)) 
            self.sizer2.Add(self.buttons[i],1,wxEXPAND) 
 
        # Use some sizers to see layout options 
        self.sizer=wxBoxSizer(wxVERTICAL) 
        self.sizer.Add(self.control,1,wxEXPAND) 
        self.sizer.Add(self.sizer2,0,wxEXPAND) 
         
        #Layout sizers 
        self.SetSizer(self.sizer) 
        self.SetAutoLayout(1) 
        self.sizer.Fit(self) 
 
        self.Show(1)  
 
    def OnAbout(self,e):  
        d= wxMessageDialog( self, " A sample editor \n"  
                            " in wxPython","About Sample Editor", wxOK)  
                            # Create a message dialog box  
        d.ShowModal() # Shows it  
        d.Destroy() # finally destroy it when finished.  
 
    def OnExit(self,e):  
        self.Close(true)  # Close the frame.  
 
    def OnOpen(self,e):  
        """ Open a file""" 
        dlg = wxFileDialog(self, "Choose a file", self.dirname, "", "*.*", wxOPEN)  
        if dlg.ShowModal() == wxID_OK:  
            self.filename=dlg.GetFilename()  
            self.dirname=dlg.GetDirectory()  
            f=open(self.dirname+'\\'+self.filename,'r')  
            self.control.SetValue(f.read())  
            f.close()  
        dlg.Destroy()  
         
         
app = wxPySimpleApp()  
frame = MainWindow(None, -1, "Sample editor")  
frame.Show(1)  
app.MainLoop()