Added simple read_updates example. Fixed display_frames for pydocstyle

displayarray/window/subscriber_windows.py

@@ -118,6 +118,7 @@ class SubscriberWindows(object):
         window_commands.mouse_pub.publish(mousey)
 
     def display_frames(self, frames, win_num=0, ids=None):
+        """Display a list of frames on multiple windows."""
         if isinstance(frames, Exception):
             raise frames
         for f in range(len(frames)):

examples/looping/no_display_simple.py

@@ -0,0 +1,6 @@
+from displayarray import read_updates
+
+for f in read_updates(0, size=(1, 1)):
+    if f:
+        print(f[0].shape)
+        break