python wx単純アプリケーションウィジェットコード

#!/usr/bin/python
#-*-coding:utf-8-*-
import wx 
import os
import sys

reload(sys)
sys.setdefaultencoding('utf8')  
 
import wx  
ID_BROWSE_1 = wx.NewId()
ID_BROWSE_2 = wx.NewId()
ID_BROWSE_3 = wx.NewId()
ID_BEGIN_RUN = wx.NewId()
class Example(wx.Frame):  
    def __init__(self,parent,title):  
        super(Example,self).__init__(parent,title=title,size=(550,350))  
        self.file1 = ''
        self.file2 = ''
        self.file3 = ''
        self.InitUI()  
        self.Centre()  
        self.Show()  
    def InitUI(self):  
        panel = wx.Panel(self)  
        sizer = wx.GridBagSizer(5,5)  
        
          
        
        text1 = wx.StaticText(panel,label=u"UDN9813       ")  
        font=wx.Font(18,wx.DECORATIVE,wx.NORMAL, wx.BOLD)
        text1.SetFont(font)
        sizer.Add(text1, pos=(0,2.5),flag=wx.TOP|wx.CENTER|wx.BOTTOM,border=15) 
        
          
        #icon = wx.StaticBitmap(panel,bitmap=wx.Bitmap("exit.png"))  
        #sizer.Add(icon,pos=(0,4),flag=wx.TOP|wx.RIGHT|wx.ALIGN_RIGHT,border=5)  
          
        line = wx.StaticLine(panel)  
        sizer.Add(line,pos=(1,0),span=(1,5),flag=wx.EXPAND|wx.BOTTOM,border=10)  
          
        text2 = wx.StaticText(panel,label=u"1.     ")  
        sizer.Add(text2,pos=(2,0),flag=wx.LEFT|wx.TOP,border=10)  
          
        self.tc1 = wx.TextCtrl(panel)  
        sizer.Add(self.tc1,pos=(2,1),span=(1,3),flag=wx.TOP|wx.EXPAND, border=5)    
          
        button0 = wx.Button(panel, ID_BROWSE_1, label="Browse...")  
        sizer.Add(button0, pos=(2, 4), flag=wx.TOP|wx.RIGHT, border=5) 
        
        text3 = wx.StaticText(panel, label=u"2.     ")  
        sizer.Add(text3, pos=(3, 0), flag=wx.LEFT|wx.TOP, border=10)  
  
        self.tc2 = wx.TextCtrl(panel)  
        sizer.Add(self.tc2, pos=(3, 1), span=(1, 3), flag=wx.TOP|wx.EXPAND, border=5)  
          
        button1 = wx.Button(panel, ID_BROWSE_2, label="Browse...")  
        sizer.Add(button1, pos=(3, 4), flag=wx.TOP|wx.RIGHT, border=5)  
          
        text4 = wx.StaticText(panel, label=u"3.     ")  
        sizer.Add(text4, pos=(4, 0), flag=wx.TOP|wx.LEFT, border=10)  
  
        
        self.tc3 = wx.TextCtrl(panel)  
        sizer.Add(self.tc3, pos=(4, 1), span=(1, 3), flag=wx.TOP|wx.EXPAND, border=5) 
  
        button2 = wx.Button(panel, ID_BROWSE_3, label="Browse...")  
        #dir = wx.FilePickerCtrl( panel, wx.ID_ANY, wx.EmptyString, u"         ", u".bat")
        sizer.Add(button2, pos=(4, 4), flag=wx.TOP|wx.RIGHT, border=5)  
  

  
        button4 = wx.Button(panel, ID_BEGIN_RUN, label=u"    ")  
        sizer.Add(button4, pos = (6, 4))  
  
        lambda evt, mark=1 : self.OnOpenFile(evt,mark)
        #self.Bind(wx.EVT_MENU, lambda evt, mark=i : self.OnMenusClick(evt,mark) ,btn )
        self.Bind(wx.EVT_BUTTON, lambda evt, mark=1 : self.OnOpenFile(evt,mark) ,id = ID_BROWSE_1 )
        self.Bind(wx.EVT_BUTTON, lambda evt, mark=2 : self.OnOpenFile(evt,mark) ,id = ID_BROWSE_2 )
        self.Bind(wx.EVT_BUTTON, lambda evt, mark=3 : self.OnOpenFile(evt,mark) ,id = ID_BROWSE_3 )
        #self.Bind(wx.EVT_BUTTON, self.OnOpenFile, id = ID_BROWSE_1)
        #self.Bind(wx.EVT_BUTTON, self.OnBeginRun, id = ID_BROWSE_2)
        #self.Bind(wx.EVT_BUTTON, self.OnBeginRun, id = ID_BROWSE_3)
        self.Bind(wx.EVT_BUTTON, self.OnBeginRun, id = ID_BEGIN_RUN)
        
        
        sizer.AddGrowableCol(2)  
          
        panel.SetSizer(sizer)

    def OnBeginRun(self, event):
        str1 = self.tc1.GetValue()
        str2 = self.tc2.GetValue()
        str3 = self.tc3.GetValue()
        print str1, str2, str3
        self.Close()    
    
    def OnOpenFile(self, event, mark):  

        file_wildcard = "All files(*.*)|*.*"   
        dlg = wx.FileDialog(self, "Open paint file...",  
                            os.getcwd(),   
                            style = wx.OPEN,  
                            wildcard = file_wildcard)  
        if dlg.ShowModal() == wx.ID_OK:  
            filename = dlg.GetPath()  
        dlg.Destroy() 
        if mark == 1:
            self.file1 = filename
            
            self.tc1.SetValue(filename) 
        elif mark == 2:
            self.file2 = filename
            self.tc2.SetValue(filename) 
        else:
            self.file3 = filename
            self.tc3.SetValue(filename) 
if __name__ == '__main__':  
    app = wx.App()  
    Example(None,title=u"       ")  
    app.MainLoop()