def visit_Slice(self, node):
        """Slice of form: lower:upper:step.
        e.g. 1:10:2."""
        visit = self.visit
        return '%s:%s:%s' % (visit(node.lower),
                                visit(node.upper), visit(node.step))
Slice of form: lower:upper:step.
        e.g. 1:10:2.
recipes/Python/576671_Parse_call_functiPy26_Py27_/recipe-576671.py