pylinting :D

src/Leap/main.py

@@ -1,17 +1,23 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-from leap.leap_start import Leap, LeapListener
-from ogl.application import Application
+"""
+Demo application for 3D CAD
+"""
 
-class Gesture():
+from Leap.leap.leap_start import Leap as OrigLeap
+from Leap.leap.leap_start import LeapListener
+from Leap.ogl.application import Application
+
+
+class Gesture(object):
     """
     Identifies and stores gesture data
     """
-
-    def __init__(self, name='no_gesture', details={}):
+    def __init__(self, name='no_gesture', details=None):
         self.type = name
-        self.parameters = details
+        self.parameters = details if details else dict()
+        self.app = None
 
     def update_gesture(self, gesture_name, details=None):
         """
@@ -22,13 +28,17 @@ def update_gesture(self, gesture_name, details=None):
             self.parameters.update(details)
 
     def add_application(self, app):
+        """
+        Add the application which this gesture is to be passed onto
+        """
         self.app = app
 
     def gesture_data(self):
         """
         Sends details of gesture as a dictionary
         """
-        self.app.leap_gesture(self)
+        if self.app is not None:
+            self.app.leap_gesture(self)
 
 
 def main():
@@ -43,20 +53,20 @@ def main():
     listener = LeapListener()
     listener.add_gesture(gestures)
 
-    controller = Leap.Controller()
+    controller = OrigLeap.Controller()
     controller.add_listener(listener)
 
     gl_app.cleanup = lambda: controller.remove_listener(listener)
 
-    print("Press ESC to quit")
+    print("Press ESC to quit")  # pylint: disable=superfluous-parens
     gl_app.main_loop()
     # try:
     #     sys.stdin.readline()
     # except KeyboardInterrupt:
     #     pass
     # finally:
     #     controller.remove_listener(listener)
-    print("Thank you for trying our program")
+    print("Thank you for trying our program")  # pylint: disable=superfluous-parens
 
 if __name__ == '__main__':
     main()