add hello-world.py

hello-world.py

@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+
+import gi
+gi.require_version("Gtk", "3.0")
+from gi.repository import Gtk
+
+class MyWindow(Gtk.Window):
+
+    def __init__(self):
+        Gtk.Window.__init__(self, title = "Hello World!")
+
+        self.button = Gtk.Button(label = "Click Me")
+        self.button.connect("clicked", self.on_button_clicked)
+        self.add(self.button)
+
+    def on_button_clicked(self, widget):
+        print("Hello World!")
+
+window = MyWindow()
+window.connect("delete-event", Gtk.main_quit)
+window.show_all()
+
+Gtk.main()