wx Python problem; attribute error

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  • Nala Flores
    New Member
    • Apr 2011
    • 3
    #1

    wx Python problem; attribute error

    im try to activate a tutorial code for wxPython,
    the calculator.py.. .but it gives me the next message

    File "C:\Users\AOFU\ Desktop\A-PYTHON\calculat or.py", line 184, in <module>
    app = MyApp(0)
    File "C:\Python27\li b\site-packages\wx-2.8-msw-unicode\wx\_cor e.py", line 7978, in __init__
    self._Bootstrap App()
    File "C:\Python27\li b\site-packages\wx-2.8-msw-unicode\wx\_cor e.py", line 7552, in _BootstrapApp
    return _core_.PyApp__B ootstrapApp(*ar gs, **kwargs)
    File "C:\Users\AOFU\ Desktop\A-PYTHON\calculat or.py", line 179, in OnInit
    frame = MyFrame(None, -1, 'calculator.py' )
    File "C:\Users\AOFU\ Desktop\A-PYTHON\calculat or.py", line 17, in __init__
    wx.EVT_MENU(sel f, 22, self.OnClose)
    AttributeError: 'MyFrame' object has no attribute 'OnClose'

    Code:
    #!/usr/bin/python
    
    # calculator.py
    
import wx
    
class MyFrame(wx.Frame):
        def __init__(self, parent, id, title):
    
           wx.Frame.__init__(self, parent, id, title, wx.DefaultPosition, wx.Size(300, 250))
           self.formula = False
           menubar = wx.MenuBar()
           file = wx.Menu()
           file.Append(22, '&Quit', 'Exit Calculator')
           menubar.Append(file, '&File')
           self.SetMenuBar(menubar)
           wx.EVT_MENU(self, 22, self.OnClose)
           sizer = wx.BoxSizer(wx.VERTICAL)
           self.display = wx.TextCtrl(self, -1, '',  style=wx.TE_RIGHT)
           sizer.Add(self.display, 0, wx.EXPAND | wx.TOP | wx.BOTTOM, 4)
   
           gs = wx.GridSizer(4, 4, 3, 3)
           gs.AddMany([(wx.Button(self, 20, 'Cls'), 0, wx.EXPAND),
                           (wx.Button(self, 21, 'Bck'), 0, wx.EXPAND),
                           (wx.StaticText(self, -1, ''), 0, wx.EXPAND),
                           (wx.Button(self, 22, 'Close'), 0, wx.EXPAND),
                           (wx.Button(self, 1, '7'), 0, wx.EXPAND),
                           (wx.Button(self, 2, '8'), 0, wx.EXPAND),
                           (wx.Button(self, 3, '9'), 0, wx.EXPAND),
                           (wx.Button(self, 4, '/'), 0, wx.EXPAND),
                           (wx.Button(self, 5, '4'), 0, wx.EXPAND),
                           (wx.Button(self, 6, '5'), 0, wx.EXPAND),
                           (wx.Button(self, 7, '6'), 0, wx.EXPAND),
                           (wx.Button(self, 8, '*'), 0, wx.EXPAND),
                           (wx.Button(self, 9, '1'), 0, wx.EXPAND),
                           (wx.Button(self, 10, '2'), 0, wx.EXPAND),
                           (wx.Button(self, 11, '3'), 0, wx.EXPAND),
                           (wx.Button(self, 12, '-'), 0, wx.EXPAND),
                           (wx.Button(self, 13, '0'), 0, wx.EXPAND),
                           (wx.Button(self, 14, '.'), 0, wx.EXPAND),
                           (wx.Button(self, 15, '='), 0, wx.EXPAND),
                           (wx.Button(self, 16, '+'), 0, wx.EXPAND) ])
   
           sizer.Add(gs, 1, wx.EXPAND)
   
           self.SetSizer(sizer)
           self.Centre()
   
           self.Bind(wx.EVT_BUTTON, self.OnClear, id=20)
           self.Bind(wx.EVT_BUTTON, self.OnBackspace, id=21)
           self.Bind(wx.EVT_BUTTON, self.OnClose, id=22)
           self.Bind(wx.EVT_BUTTON, self.OnSeven, id=1)
           self.Bind(wx.EVT_BUTTON, self.OnEight, id=2)
           self.Bind(wx.EVT_BUTTON, self.OnNine, id=3)
           self.Bind(wx.EVT_BUTTON, self.OnDivide, id=4)
           self.Bind(wx.EVT_BUTTON, self.OnFour, id=5)
           self.Bind(wx.EVT_BUTTON, self.OnFive, id=6)
           self.Bind(wx.EVT_BUTTON, self.OnSix, id=7)
           self.Bind(wx.EVT_BUTTON, self.OnMultiply, id=8)
           self.Bind(wx.EVT_BUTTON, self.OnOne, id=9)
           self.Bind(wx.EVT_BUTTON, self.OnTwo, id=10)
           self.Bind(wx.EVT_BUTTON, self.OnThree, id=11)
           self.Bind(wx.EVT_BUTTON, self.OnMinus, id=12)
           self.Bind(wx.EVT_BUTTON, self.OnZero, id=13)
           self.Bind(wx.EVT_BUTTON, self.OnDot, id=14)
           self.Bind(wx.EVT_BUTTON, self.OnEqual, id=15)
           self.Bind(wx.EVT_BUTTON, self.OnPlus, id=16)
   
def OnClear(self, event):
        self.display.Clear()
   
def OnBackspace(self, event):
           formula = self.display.GetValue()
           self.display.Clear()
           self.display.SetValue(formula[:-1])
   
def OnClose(self, event):
           self.Close()
   
def OnDivide(self, event):
           if self.formula:
               return
           self.display.AppendText('/')
   
def OnMultiply(self, event):
           if self.formula:
               return
           self.display.AppendText('*')
   
def OnMinus(self, event):
           if self.formula:
               return
           self.display.AppendText('-')
   
def OnPlus(self, event):
           if self.formula:
               return
           self.display.AppendText('+')
   
def OnDot(self, event):
          if self.formula:
              return
          self.display.AppendText('.')
  
def OnEqual(self, event):
          if self.formula:
              return
          formula = self.display.GetValue()
          self.formula = False
          try:
              self.display.Clear()
              output = eval(formula)
              self.display.AppendText(str(output))
          except StandardError:
              self.display.AppendText("Error")
  
def OnZero(self, event):
          if self.formula:
              self.display.Clear()
              self.formula = False
          self.display.AppendText('0')
  
def OnOne(self, event):
          if self.formula:
              self.display.Clear()
              self.formula = False
          self.display.AppendText('1')
  
def OnTwo(self, event):
          if self.formula:
              self.display.Clear()
              self.formula = False
          self.display.AppendText('2')
  
def OnThree(self, event):
          if self.formula:
              self.display.Clear()
              self.formula = False
          self.display.AppendText('3')
  
def OnFour(self, event):
          if self.formula:
              self.display.Clear()
              self.formula = False
          self.display.AppendText('4')
  
def OnFive(self, event):
          if self.formula:
              self.display.Clear()
              self.formula = False
          self.display.AppendText('5')
  
def OnSix(self, event):
          if self.formula:
              self.display.Clear()
              self.formula = False
          self.display.AppendText('6')
  
def OnSeven(self, event):
          if self.formula:
              self.display.Clear()
              self.formula = False
          self.display.AppendText('7')
  
def OnEight(self, event):
          if self.formula:
              self.display.Clear()
              self.formula = False
          self.display.AppendText('8')
  
def OnNine(self, event):
          if self.formula:
              self.display.Clear()
              self.formula = False
          self.display.AppendText('9')
  
class MyApp(wx.App):
      def OnInit(self):
          frame = MyFrame(None, -1, 'calculator.py')
          frame.Show(True)
          self.SetTopWindow(frame)
          return True
  
app = MyApp(0)
app.MainLoop()
    Tags: error, python, wxpython
    • bvdet
      Recognized Expert Specialist
      • Oct 2006
      • 2851
      #2
      Your indentation is wrong. The functions after the class MyFrame block must be at the same leval as __init__().

        Comment

        • Nala Flores
          New Member
          • Apr 2011
          • 3
          #3
          ok sorry,...it works...thx...b ut the calculator doesnt appear

            Comment

            • bvdet
              Recognized Expert Specialist
              • Oct 2006
              • 2851
              #4
              After correcting your indentation, the application appears to work fine.
              Code:
              #!/usr/bin/python
 
# calculator.py
 
import wx
 
class MyFrame(wx.Frame):
    def __init__(self, parent, id, title):
 
        wx.Frame.__init__(self, parent, id, title, wx.DefaultPosition, wx.Size(300, 250))
        self.formula = False
        menubar = wx.MenuBar()
        file = wx.Menu()
        file.Append(22, '&Quit', 'Exit Calculator')
        menubar.Append(file, '&File')
        self.SetMenuBar(menubar)
        wx.EVT_MENU(self, 22, self.OnClose)
        sizer = wx.BoxSizer(wx.VERTICAL)
        self.display = wx.TextCtrl(self, -1, '',  style=wx.TE_RIGHT)
        sizer.Add(self.display, 0, wx.EXPAND | wx.TOP | wx.BOTTOM, 4)

        gs = wx.GridSizer(4, 4, 3, 3)
        gs.AddMany([(wx.Button(self, 20, 'Cls'), 0, wx.EXPAND),
                       (wx.Button(self, 21, 'Bck'), 0, wx.EXPAND),
                       (wx.StaticText(self, -1, ''), 0, wx.EXPAND),
                       (wx.Button(self, 22, 'Close'), 0, wx.EXPAND),
                       (wx.Button(self, 1, '7'), 0, wx.EXPAND),
                       (wx.Button(self, 2, '8'), 0, wx.EXPAND),
                       (wx.Button(self, 3, '9'), 0, wx.EXPAND),
                       (wx.Button(self, 4, '/'), 0, wx.EXPAND),
                       (wx.Button(self, 5, '4'), 0, wx.EXPAND),
                       (wx.Button(self, 6, '5'), 0, wx.EXPAND),
                       (wx.Button(self, 7, '6'), 0, wx.EXPAND),
                       (wx.Button(self, 8, '*'), 0, wx.EXPAND),
                       (wx.Button(self, 9, '1'), 0, wx.EXPAND),
                       (wx.Button(self, 10, '2'), 0, wx.EXPAND),
                       (wx.Button(self, 11, '3'), 0, wx.EXPAND),
                       (wx.Button(self, 12, '-'), 0, wx.EXPAND),
                       (wx.Button(self, 13, '0'), 0, wx.EXPAND),
                       (wx.Button(self, 14, '.'), 0, wx.EXPAND),
                       (wx.Button(self, 15, '='), 0, wx.EXPAND),
                       (wx.Button(self, 16, '+'), 0, wx.EXPAND) ])

        sizer.Add(gs, 1, wx.EXPAND)

        self.SetSizer(sizer)
        self.Centre()

        self.Bind(wx.EVT_BUTTON, self.OnClear, id=20)
        self.Bind(wx.EVT_BUTTON, self.OnBackspace, id=21)
        self.Bind(wx.EVT_BUTTON, self.OnClose, id=22)
        self.Bind(wx.EVT_BUTTON, self.OnSeven, id=1)
        self.Bind(wx.EVT_BUTTON, self.OnEight, id=2)
        self.Bind(wx.EVT_BUTTON, self.OnNine, id=3)
        self.Bind(wx.EVT_BUTTON, self.OnDivide, id=4)
        self.Bind(wx.EVT_BUTTON, self.OnFour, id=5)
        self.Bind(wx.EVT_BUTTON, self.OnFive, id=6)
        self.Bind(wx.EVT_BUTTON, self.OnSix, id=7)
        self.Bind(wx.EVT_BUTTON, self.OnMultiply, id=8)
        self.Bind(wx.EVT_BUTTON, self.OnOne, id=9)
        self.Bind(wx.EVT_BUTTON, self.OnTwo, id=10)
        self.Bind(wx.EVT_BUTTON, self.OnThree, id=11)
        self.Bind(wx.EVT_BUTTON, self.OnMinus, id=12)
        self.Bind(wx.EVT_BUTTON, self.OnZero, id=13)
        self.Bind(wx.EVT_BUTTON, self.OnDot, id=14)
        self.Bind(wx.EVT_BUTTON, self.OnEqual, id=15)
        self.Bind(wx.EVT_BUTTON, self.OnPlus, id=16)
 
    def OnClear(self, event):
        self.display.Clear()
 
    def OnBackspace(self, event):
        formula = self.display.GetValue()
        self.display.Clear()
        self.display.SetValue(formula[:-1])
 
    def OnClose(self, event):
        self.Close()
 
    def OnDivide(self, event):
        if self.formula:
            return
        self.display.AppendText('/')
 
    def OnMultiply(self, event):
        if self.formula:
            return
        self.display.AppendText('*')
 
    def OnMinus(self, event):
        if self.formula:
            return
        self.display.AppendText('-')
 
    def OnPlus(self, event):
        if self.formula:
            return
        self.display.AppendText('+')

    def OnDot(self, event):
        if self.formula:
            return
        self.display.AppendText('.')
 
    def OnEqual(self, event):
        if self.formula:
            return
        formula = self.display.GetValue()
        self.formula = False
        try:
            self.display.Clear()
            output = eval(formula)
            self.display.AppendText(str(output))
        except StandardError:
            self.display.AppendText("Error")
 
    def OnZero(self, event):
        if self.formula:
            self.display.Clear()
            self.formula = False
        self.display.AppendText('0')
 
    def OnOne(self, event):
        if self.formula:
            self.display.Clear()
            self.formula = False
        self.display.AppendText('1')
 
    def OnTwo(self, event):
        if self.formula:
            self.display.Clear()
            self.formula = False
        self.display.AppendText('2')
 
    def OnThree(self, event):
        if self.formula:
            self.display.Clear()
            self.formula = False
        self.display.AppendText('3')
 
    def OnFour(self, event):
        if self.formula:
            self.display.Clear()
            self.formula = False
        self.display.AppendText('4')
 
    def OnFive(self, event):
        if self.formula:
            self.display.Clear()
            self.formula = False
        self.display.AppendText('5')
 
    def OnSix(self, event):
        if self.formula:
            self.display.Clear()
            self.formula = False
        self.display.AppendText('6')
 
    def OnSeven(self, event):
        if self.formula:
            self.display.Clear()
            self.formula = False
        self.display.AppendText('7')
 
    def OnEight(self, event):
        if self.formula:
            self.display.Clear()
            self.formula = False
        self.display.AppendText('8')
 
    def OnNine(self, event):
          if self.formula:
              self.display.Clear()
              self.formula = False
          self.display.AppendText('9')
 
class MyApp(wx.App):
    def OnInit(self):
        frame = MyFrame(None, -1, 'calculator.py')
        frame.Show(True)
        self.SetTopWindow(frame)
        return True
 
app = MyApp(0)
app.MainLoop()

                Comment

                • Nala Flores
                  New Member
                  • Apr 2011
                  • 3
                  #5
                  thx.it worked..i was doing that thing wrong..soo wrong...

                    Comment

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