def traverse(self):
        """Enumerate children and build associated objects
        """
        builder = self.child_builder
        for child in self._children:
            with pushd(str(child)):
                yield child, builder(child)
def traverse ( self ) : builder = self . child_builder for child in self . _children : with pushd ( str ( child ) ) : yield child , builder ( child )
Enumerate children and build associated objects