Added more debug output to chase the Travis build errors on py3 [ci skip]

bob/extension/__init__.py

@@ -612,6 +612,11 @@ class build_ext(_build_ext):
       lib_dirs = [ext.c_target_directory]
       include_dirs = [ext.c_self_include_directory]
 
+      # DEBUG: print self and ext
+      print (self, self.__dict__)
+      print(_build_ext.__file__)
+      print (ext.__dict__)
+
       # set the DEFAULT library path and include path for all other extensions
       for other_ext in self.extensions:
         if other_ext != ext: