def visit_ExtSlice(self, node):
        for i,d in enumerate(node.dims):
            if 0 > i:
                self.append(',')
            self.visit(d)
dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.main/src/openmdao/main/printexpr.py/ExprPrinter.visit_ExtSlice/swapped operands of `>`