Add documentation to examples/camera/main.py

examples/camera/main.py

@@ -1,6 +1,19 @@
+'''
+Camera Example
+==============
+
+This example demonstrates a simple use of the camera.  It shows a window with
+a buttoned labelled 'play' to turn the camera on and off.  Note that
+not finding a camera, perhaps because gstreamer is not installed, will
+throw an exception during the kv language processing.
+
+'''
+
+# Uncomment these lines to see all the messages
 #from kivy.logger import Logger
 #import logging
 #Logger.setLevel(logging.TRACE)
+
 from kivy.app import App
 from kivy.lang import Builder
 
@@ -18,6 +31,7 @@ BoxLayout:
         height: '48dp'
 '''
 
+
 class TestCamera(App):
     def build(self):
         return Builder.load_string(kv)