--- a/pivy/quarter/QuarterWidget.py
+++ b/pivy/quarter/QuarterWidget.py
@@ -14,7 +14,7 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #
 
-"""
+r"""
   Quarter is a light-weight glue library that provides seamless
   integration between Systems in Motions's \COIN high-level 3D
   visualization library and Trolltech's \QT 2D user interface
--- a/pivy/quarter/eventhandlers/DragDropHandler.py
+++ b/pivy/quarter/eventhandlers/DragDropHandler.py
@@ -14,7 +14,7 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #
 
-"""
+r"""
 \class SIM::Coin3D::Quarter::DragDropHandler DragDropHandler.h Quarter/devices/DragDropHandler.h
 
   \brief The DragDropHandler class provides drag and drop
--- a/pivy/quarter/eventhandlers/EventHandler.py
+++ b/pivy/quarter/eventhandlers/EventHandler.py
@@ -14,7 +14,7 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #
 
-"""
+r"""
 \class SIM::Coin3D::Quarter::EventHandler EventHandler.h Quarter/eventhandlers/EventHandler.h
 
   \brief The EventHandler class is the base class for eventhandlers