SimpleAppWx.py

#!/usr/bin/python
# -*- coding: iso-8859-1 -*-

try:
    import wx
except ImportError:
    raise ImportError("The wxPython module is required to run this program")


class simpleapp_wx(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title)
        self.parent = parent
        self.initialize()

    def initialize(self):
        sizer = wx.GridBagSizer()

        self.entry = wx.TextCtrl(self, -1, value=u"Enter text here.")
        sizer.Add(self.entry, (0, 0), (1, 1), wx.EXPAND)
        self.Bind(wx.EVT_TEXT_ENTER, self.OnPressEnter, self.entry)

        button = wx.Button(self, -1, label="Click me !")
        sizer.Add(button, (0, 1))
        self.Bind(wx.EVT_BUTTON, self.OnButtonClick, button)

        self.label = wx.StaticText(self, -1, label=u'Hello !')
        self.label.SetBackgroundColour(wx.BLUE)
        self.label.SetForegroundColour(wx.WHITE)
        sizer.Add(self.label, (1, 0), (1, 2), wx.EXPAND)

        sizer.AddGrowableCol(0)
        self.SetSizerAndFit(sizer)
        self.SetSizeHints(-1, self.GetSize().y, -1, self.GetSize().y)
        self.entry.SetFocus()
        self.entry.SetSelection(-1, -1)
        self.Show(True)

    def OnButtonClick(self, event):
        self.label.SetLabel(self.entry.GetValue() +
                            " (You clicked the button)")
        self.entry.SetFocus()
        self.entry.SetSelection(-1, -1)

    def OnPressEnter(self, event):
        self.label.SetLabel(self.entry.GetValue() + " (You pressed ENTER)")
        self.entry.SetFocus()
        self.entry.SetSelection(-1, -1)


if __name__ == "__main__":
    app = wx.App()
    frame = simpleapp_wx(None, -1, 'my application')
    app.MainLoop()