PyGTK Hello World - PyGTK

What is PyGTK Hello World?

Creating a window using PyGTK is very easy. To continue, we first need to import the gtk module in our code.
import gtk

The gtk module comprises the gtk.Window class. Its object constructs a toplevel window. We derive a class from gtk.Window.
class PyApp(gtk.Window):

Define the constructor and call the show_all() method of the gtk.window class.
def __init__(self): super(PyApp, self).__init__() self.show_all()

We currently have to declare the object of this class and start an event loop by calling its main() method.
PyApp() gtk.main()
It is suggested we add a label “Hello World” in the parent window.
label = gtk.Label("Hello World") self.add(label)

The resulting is a complete code to display “Hello World”−
import gtk class PyApp(gtk.Window): def __init__(self): super(PyApp, self).__init__() self.set_default_size(300,200) self.set_title("Hello World in PyGTK") label = gtk.Label("Hello World") self.add(label) self.show_all() PyApp() gtk.main()

The execution of the above code will yield the resulting output –