An example of a simple GUI calculator based on Wxpython development

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# WxCalc1 A simple GUI calculator using wxpython# created with the Boa Constructor which generates all the GUI components# All I had to do are add some code for each button click event# Boa free from:http://boa-constructor.sourceforge.net/# not  E that boa-constructor-0.3.1.win32.exe# still uses wxpythonwin32-2.4.2.4-py23.exe# are expected to work with WxPython Version 2.5 soon# tested with Python23 vegaseat 26feb2005from wxpython.wx import *# Some Boa generated global IDs ... [Wxid_wxframe1, Wxid_wxframe1btn0, WXID_WXFRAME1BTN1, WXID_WXFRAME1BTN2, Wxid_wxframe1btn3, WxID_WXFRAME1BTN4, wxID_ Wxframe1btn5, Wxid_wxframe1btn6, Wxid_wxframe1btn7, Wxid_wxframe1btn8, Wxid_wxframe1btn9, WxID_WXFRAME1BTNCLEAR, Wxid_wxframe1btndiv, Wxid_wxframe1btndot, Wxid_wxframe1btnequal, Wxid_wxframe1btnminus, WxID_WXFRAME1BTNMULTI, WxID _wxframe1btnplus, wxid_wxframe1edit,] = map (lambda _init_ctrls:wxnewid (), range (+)) class WxFrame1 (Wxframe): # Startregion, below this marker was Boa generated code do notEdit!!! def _init_ctrls (self, prnt): # generated method, don ' t edit wxframe.__init__ (self, id=wxid_wxframe1, name= ", Parent =prnt, Pos=wxpoint (306, +), Size=wxsize (266, 265), Style=wxdefault_frame_style, title= ' Calculator1 ') self . Setclientsize (wxsize (258, 225)) self. Setbackgroundcolour (wxcolour (0, 0)) Self.btn1 = Wxbutton (id=wxid_wxframe1btn1, label= ' 1 ', name= ' btn1 ', paren T=self, Pos=wxpoint (136), size=wxsize (+, +), style=0) Evt_button (SELF.BTN1, wxid_wxframe1btn1, self. Onbtn1button) self.btn2 = Wxbutton (id=wxid_wxframe1btn2, label= ' 2 ', name= ' btn2 ', Parent=self, Pos=wxpoint (64, 136 ), Size=wxsize (+, +), style=0) Evt_button (SELF.BTN2, wxid_wxframe1btn2, self. Onbtn2button) Self.btn3 = Wxbutton (Id=wxid_wxframe1btn3, label= ' 3 ', name= ' btn3 ', Parent=self, Pos=wxpoint (112, 13 6), Size=wxsize (+, +), style=0) Evt_button (Self.btn3, wxid_wxframe1btn3, self. Onbtn3button) Self.btn4 = Wxbutton (Id=wxid_wxframe1btn4, label=' 4 ', name= ' btn4 ', parent=self, Pos=wxpoint (+), size=wxsize (+), style=0) Evt_button (Self.btn4, WXID_WXFR Ame1btn4, self. Onbtn4button) Self.btn5 = Wxbutton (id=wxid_wxframe1btn5, label= ' 5 ', name= ' btn5 ', Parent=self, Pos=wxpoint (64, 96) , Size=wxsize (+, +), style=0) Evt_button (Self.btn5, wxid_wxframe1btn5, self. Onbtn5button) self.btn6 = Wxbutton (id=wxid_wxframe1btn6, label= ' 6 ', name= ' btn6 ', Parent=self, Pos=wxpoint (112, 96 ), Size=wxsize (+, +), style=0) Evt_button (self.btn6, wxid_wxframe1btn6, self. Onbtn6button) self.btn7 = Wxbutton (id=wxid_wxframe1btn7, label= ' 7 ', name= ' btn7 ', Parent=self, Pos=wxpoint (16, 56) , Size=wxsize (+, +), style=0) Evt_button (self.btn7, wxid_wxframe1btn7, self. Onbtn7button) Self.btn8 = Wxbutton (id=wxid_wxframe1btn8, label= ' 8 ', name= ' btn8 ', Parent=self, Pos=wxpoint (64, 56) , Size=wxsize (+, +), style=0) Evt_button (SELF.BTN8, wxid_wxframe1btn8, self. Onbtn8button) Self.btn9 = Wxbutton (ID=WXID_WXFRAme1btn9, label= ' 9 ', name= ' btn9 ', Parent=self, Pos=wxpoint (in A.), Size=wxsize (+, +), style=0) Evt_button (sel F.btn9, Wxid_wxframe1btn9, self. Onbtn9button) Self.btn0 = Wxbutton (id=wxid_wxframe1btn0, label= ' 0 ', name= ' btn0 ', Parent=self, Pos=wxpoint (16, 176 ), Size=wxsize (+, +), style=0) Evt_button (Self.btn0, wxid_wxframe1btn0, self. Onbtn0button) Self.btndot = Wxbutton (Id=wxid_wxframe1btndot, label= '. ', name= ' Btndot ', Parent=self, Pos=wxPoint (6 4, 176), size=wxsize (+, +), style=0) Evt_button (Self.btndot, Wxid_wxframe1btndot, self. Onbtndotbutton) self.btnequal = Wxbutton (id=wxid_wxframe1btnequal, label= ' = ', name= ' btnequal ', parent=self, pos=w XPoint (176), size=wxsize (+, +), style=0) Evt_button (self.btnequal, wxid_wxframe1btnequal, self. Onbtnequalbutton) Self.edit = Wxtextctrl (Id=wxid_wxframe1edit, name= ' edit ', parent=self, Pos=wxpoint (+), siz E=wxsize (224), style=0, value= ") Self.btnplus = Wxbutton (id=wxid_Wxframe1btnplus, label= ' + ', name= ' btnplus ', parent=self, Pos=wxpoint (up, up), size=wxsize (+), style=0) Evt_button (Self.btnplus, wxid_wxframe1btnplus, self. Onbtnplusbutton) Self.btnminus = Wxbutton (Id=wxid_wxframe1btnminus, label= '-', name= ' Btnminus ', parent=self, pos= Wxpoint (), size=wxsize (+, +), style=0) Evt_button (Self.btnminus, Wxid_wxframe1btnminus, self. Onbtnminusbutton) Self.btnmulti = Wxbutton (Id=wxid_wxframe1btnmulti, label= ' * ', name= ' Btnmulti ', parent=self, POS =wxpoint (136), size=wxsize (+, +), style=0) Evt_button (Self.btnmulti, Wxid_wxframe1btnmulti, self. Onbtnmultibutton) Self.btndiv = Wxbutton (id=wxid_wxframe1btndiv, label= '/', name= ' Btndiv ', parent=self, Pos=wxPoi NT (176), size=wxsize (+, +), style=0) Evt_button (Self.btndiv, Wxid_wxframe1btndiv, self. Onbtndivbutton) Self.btnclear = Wxbutton (id=wxid_wxframe1btnclear, label= ' C ', name= ' btnclear ', parent=self, pos=w XPoint (208, 56), Size=wxsize (+), style=0) self.btnClear.SetToolTipString (' Btnclear ') Evt_button (Self.btnclear, WXID_WXFR Ame1btnclear, self. Onbtnclearbutton) def __init__ (self, parent): Self._init_ctrls (parent) #endregion, above this marker is Boa generated C Ode, do NOT edit!!! # now respond to all the button click events ... def onbtn0button (self, event): val = ' 0 ' # get existing edit box t   Ext txt = self.edit.GetValue () # append text txt = txt + val # update edit box text self.edit.SetValue (TXT)  def Onbtn1button (self, event): val = ' 1 ' txt = self.edit.GetValue () txt = txt + val self.edit.SetValue (TXT)  def Onbtn2button (self, event): val = ' 2 ' txt = self.edit.GetValue () txt = txt + val self.edit.SetValue (TXT) def Onbtn3button (self, event): val = ' 3 ' txt = self.edit.GetValue () txt = txt + val self.edit.SetValue (txt) d EF Onbtn4button (Self, event): val = ' 4 ' txt = self.edit.GetValue () txt = txt + val self.edit.SetValue (TXT) def onbtn5button (Self, event): val = ' 5 ' txt = self.edit.GetValue () txt = txt + val self.edit. SetValue (TXT) def onbtn6button (Self, event): val = ' 6 ' txt = self.edit.GetValue () txt = txt + val Self.edit.s Etvalue (TXT) def onbtn7button (Self, event): val = ' 7 ' txt = self.edit.GetValue () txt = txt + val self.edit.Se TValue (TXT) def onbtn8button (Self, event): val = ' 8 ' txt = self.edit.GetValue () txt = txt + val self.edit.Set Value (TXT) def onbtn9button (Self, event): val = ' 9 ' txt = self.edit.GetValue () txt = txt + val Self.edit.SetV    Alue (TXT) def onbtndotbutton (Self, event): val = '. ' txt = self.edit.GetValue () txt = txt + val self.edit.SetValue (TXT) def onbtnequalbutton (Self, event): txt = self . Edit. GetValue () # needs to contain a float so eg.  3/5 is 3/5.0 # Otherwise division 3/5 would result in zero if '/' in txt:if '. ' Not in txt:txt = txt + '. 0 ' # now evaluate the math String txt = repr (eval (TXT)) # and show result in edit box Self.edit.SetValue (TXT) def onbtnplusbutton (self, Ev  ENT): val = ' + ' txt = self.edit.GetValue () txt = txt + val self.edit.SetValue (TXT) def onbtnminusbutton (self, Event): val = '-' txt = self.edit.GetValue () txt = txt + val self.edit.SetValue (TXT) def onbtnmultibutton (SE LF, event): val = ' * ' txt = self.edit.GetValue () txt = txt + val self.edit.SetValue (TXT) def Onbtndivbutton (s Elf, event): val = '/' txt = self.edit.GetValue () txt = txt + val self.edit.SetValue (TXT) def Onbtnclearbutto N (Self, Event): Self.edit.SetValue (") #--------------------End of Class wxFrame1----------------------def create (par ENT): Return wxFrame1 (Parent) class Boaapp (Wxapp): def OnInit (self): wxinitallimagehandlers () Self.main = Create (No NE) self.main.Show () self. Settopwindow (Self.main) return truedef main (): application = Boaapp (0) application. Mainloop () if __name__ = = '__main__ ': Main () 

Hopefully this article will help you with Python programming.

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