Ability to suppress pipe info

direct/src/showbase/ShowBase.py

@@ -450,14 +450,15 @@ class ShowBase(DirectObject.DirectObject):
         if self.oldexitfunc:
             self.oldexitfunc()
 
-    def makeDefaultPipe(self):
+    def makeDefaultPipe(self, printPipeTypes = True):
         """
         Creates the default GraphicsPipe, which will be used to make
         windows unless otherwise specified.
         """
         assert self.pipe == None
         selection = GraphicsPipeSelection.getGlobalPtr()
-        selection.printPipeTypes()
+        if printPipeTypes:
+            selection.printPipeTypes()
         self.pipe = selection.makeDefaultPipe()
         if not self.pipe:
             self.notify.error(