Simple gui calculator instance developed based on wxpython

This article mainly introduces the simple gui calculator developed based on wxpython. The example analyzes the related skills for implementing simple desktop applications based on wxpython, if you need a simple gui calculator, refer to the examples in this article to describe a simple gui calculator developed based on wxpython. Share it with you for your reference. The details are as follows:

# wxCalc1 a simple GUI calculator using wxPython# created with the Boa Constructor which generates all the GUI components# all I had to do is add some code for each button click event# Boa free from: http://boa-constructor.sourceforge.net/# note that  boa-constructor-0.3.1.win32.exe# still uses  wxPythonWIN32-2.4.2.4-Py23.exe# but is 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(19))class wxFrame1(wxFrame):#startregion, below this marker is Boa generated code do not edit!!!  def _init_ctrls(self, prnt):    # generated method, don't edit    wxFrame.__init__(self, id=wxID_WXFRAME1, name='', parent=prnt,       pos=wxPoint(306, 270), size=wxSize(266, 265),       style=wxDEFAULT_FRAME_STYLE, title='Calculator1')    self.SetClientSize(wxSize(258, 225))    self.SetBackgroundColour(wxColour(0, 128, 0))    self.btn1 = wxButton(id=wxID_WXFRAME1BTN1, label='1', name='btn1',       parent=self, pos=wxPoint(16, 136), size=wxSize(32, 32), 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(32, 32), 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, 136), size=wxSize(32, 32), style=0)    EVT_BUTTON(self.btn3, wxID_WXFRAME1BTN3, self.OnBtn3Button)    self.btn4 = wxButton(id=wxID_WXFRAME1BTN4, label='4', name='btn4',       parent=self, pos=wxPoint(16, 96), size=wxSize(32, 32), style=0)    EVT_BUTTON(self.btn4, wxID_WXFRAME1BTN4, self.OnBtn4Button)    self.btn5 = wxButton(id=wxID_WXFRAME1BTN5, label='5', name='btn5',       parent=self, pos=wxPoint(64, 96), size=wxSize(32, 32), 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(32, 32), 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(32, 32), 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(32, 32), style=0)    EVT_BUTTON(self.btn8, wxID_WXFRAME1BTN8, self.OnBtn8Button)    self.btn9 = wxButton(id=wxID_WXFRAME1BTN9, label='9', name='btn9',       parent=self, pos=wxPoint(112, 56), size=wxSize(32, 32), style=0)    EVT_BUTTON(self.btn9, wxID_WXFRAME1BTN9, self.OnBtn9Button)    self.btn0 = wxButton(id=wxID_WXFRAME1BTN0, label='0', name='btn0',       parent=self, pos=wxPoint(16, 176), size=wxSize(32, 32), style=0)    EVT_BUTTON(self.btn0, wxID_WXFRAME1BTN0, self.OnBtn0Button)    self.btnDot = wxButton(id=wxID_WXFRAME1BTNDOT, label='.', name='btnDot',       parent=self, pos=wxPoint(64, 176), size=wxSize(32, 32), style=0)    EVT_BUTTON(self.btnDot, wxID_WXFRAME1BTNDOT, self.OnBtnDotButton)    self.btnEqual = wxButton(id=wxID_WXFRAME1BTNEQUAL, label='=',       name='btnEqual', parent=self, pos=wxPoint(112, 176),       size=wxSize(32, 32), style=0)    EVT_BUTTON(self.btnEqual, wxID_WXFRAME1BTNEQUAL, self.OnBtnEqualButton)    self.edit = wxTextCtrl(id=wxID_WXFRAME1EDIT, name='edit', parent=self,       pos=wxPoint(16, 16), size=wxSize(224, 24), style=0, value='')    self.btnPlus = wxButton(id=wxID_WXFRAME1BTNPLUS, label='+',       name='btnPlus', parent=self, pos=wxPoint(160, 56), size=wxSize(32,       32), style=0)    EVT_BUTTON(self.btnPlus, wxID_WXFRAME1BTNPLUS, self.OnBtnPlusButton)    self.btnMinus = wxButton(id=wxID_WXFRAME1BTNMINUS, label='-',       name='btnMinus', parent=self, pos=wxPoint(160, 96),       size=wxSize(32, 32), style=0)    EVT_BUTTON(self.btnMinus, wxID_WXFRAME1BTNMINUS, self.OnBtnMinusButton)    self.btnMulti = wxButton(id=wxID_WXFRAME1BTNMULTI, label='*',       name='btnMulti', parent=self, pos=wxPoint(160, 136),       size=wxSize(32, 32), style=0)    EVT_BUTTON(self.btnMulti, wxID_WXFRAME1BTNMULTI, self.OnBtnMultiButton)    self.btnDiv = wxButton(id=wxID_WXFRAME1BTNDIV, label='/', name='btnDiv',       parent=self, pos=wxPoint(160, 176), size=wxSize(32, 32), style=0)    EVT_BUTTON(self.btnDiv, wxID_WXFRAME1BTNDIV, self.OnBtnDivButton)    self.btnClear = wxButton(id=wxID_WXFRAME1BTNCLEAR, label='C',       name='btnClear', parent=self, pos=wxPoint(208, 56),       size=wxSize(32, 32), style=0)    self.btnClear.SetToolTipString('btnClear')    EVT_BUTTON(self.btnClear, wxID_WXFRAME1BTNCLEAR, self.OnBtnClearButton)  def __init__(self, parent):    self._init_ctrls(parent)#endregion, above this marker is Boa generated code, do not edit!!!# now respond to all the button click events ...  def OnBtn0Button(self, event):    val = '0'    # get existing edit box text    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)  def 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.SetValue(txt)  def OnBtn7Button(self, event):    val = '7'    txt = self.edit.GetValue()    txt = txt + val    self.edit.SetValue(txt)  def OnBtn8Button(self, event):    val = '8'    txt = self.edit.GetValue()    txt = txt + val    self.edit.SetValue(txt)  def OnBtn9Button(self, event):    val = '9'    txt = self.edit.GetValue()    txt = txt + val    self.edit.SetValue(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 pision 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, event):    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(self, event):    val = '*'    txt = self.edit.GetValue()    txt = txt + val    self.edit.SetValue(txt)  def OnBtnDivButton(self, event):    val = '/'    txt = self.edit.GetValue()    txt = txt + val    self.edit.SetValue(txt)  def OnBtnClearButton(self, event):    self.edit.SetValue('')# -------------------- end of class wxFrame1 ----------------------def create(parent):  return wxFrame1(parent)class BoaApp(wxApp):  def OnInit(self):    wxInitAllImageHandlers()    self.main = create(None)    self.main.Show()    self.SetTopWindow(self.main)    return Truedef main():  application = BoaApp(0)  application.MainLoop()if __name__ == '__main__':  main()

I hope this article will help you with Python programming.