wxPython

From Wikipedia, the free encyclopedia

wxPython is a cross-platform wrapper for the GUI API (often referred to as a 'toolkit') wxWidgets (which is written in C++) for the Python programming language. It is one of the alternatives to Tkinter, which is bundled with Python. It is implemented as a Python extension module (native code). Other popular alternatives are PyGTK and PyQT. Like wxWidgets, wxPython is free software.

1 License
2 History
3 Example
4 See also
5 External links
6 References

[edit] License

Being a wrapper, wxPython uses the same free software licence used by wxWidgets—which is approved by Free Software Foundation and Open Source Initiative.

[edit] History

wxPython was born when Robin Dunn needed a GUI to be deployed on HP-UX systems and also on Windows 3.1 in a few weeks time. While evaluating commercial solutions, he ran across Python bindings for the wxWidgets toolkit. Thus, he learned Python and, in a short time, became one of the main developers of wxPython (which grew from those initial bindings), together with Harri Pasanen. The first versions of the wrapper were created by hand. However, soon the code base became very difficult to maintain and keep in sync with wxWidgets releases . However, later versions were created with SWIG, greatly decreasing the amount of work to update the wrapper. The first "modern" version was announced in 1998 ^[1].

[edit] Example

This is a simple "Hello world" module, depicting the creation of the two main objects in wxPython (the main window object and the application object), followed by passing the control to the event-driven system (by calling MainLoop()) which manages the user-interactive part of the program.

#!/usr/bin/env python
 
import wx
 
class TestFrame(wx.Frame):
    def __init__(self, parent, ID, title):
        wx.Frame.__init__(self, parent, -1, title, pos=(0, 0), size=(320, 240))
        panel = wx.Panel(self, -1)
        text = wx.StaticText(panel, -1, "Hello, World!", wx.Point(10, 5), wx.Size(-1, -1))
 
class TestApp(wx.App):
    def OnInit(self):
        frame = TestFrame(None, -1, "Hello, world!")
        self.SetTopWindow(frame)
        frame.Show(True)
        return True
 
if __name__ == '__main__':
    app = TestApp()
    app.MainLoop()