check user define bprop when there is parameter in nested network

mindspore/ccsrc/pipeline/pynative/pynative_execute.cc

@@ -1182,6 +1182,11 @@ void PynativeExecutor::EndGraphByOutId(const std::string &out_id, const py::obje
   resource_->manager()->AddFuncGraph(curr_g_);
   // custom bprop debug
   if (py::hasattr(cell, parse::CUSTOM_BPROP_NAME)) {
+    size_t par_number = py::tuple(parse::python_adapter::CallPyObjMethod(cell, "get_parameters")).size();
+    if (par_number > 0) {
+      MS_LOG(EXCEPTION) << "When user defines the net bprop, there are " << par_number
+                        << " parameters that is not supported in the net.";
+    }
     MS_LOG(DEBUG) << "Use cell custom bprop function.";
     FuncGraphPtr bprop_graph = parse::ConvertToBpropCut(cell);
     if (bprop_graph != nullptr) {

mindspore/ccsrc/pybind_api/ir/primitive_py.cc

@@ -93,7 +93,7 @@ py::tuple check_bprop_out(const py::object &grads_obj, const py::tuple &py_args)
     for (size_t i = 0; i < grads.size(); i++) {
       if (py::isinstance<tensor::Tensor>(py_args[i])) {
         if (!py::isinstance<tensor::Tensor>(grads[i])) {
-          MS_EXCEPTION(ValueError) << "For user define net bprop, the gradient of the " << i
+          MS_EXCEPTION(ValueError) << "When user defines the net bprop,, the gradient of the " << i
                                    << "th arg should be Tensor, but got "
                                    << py::cast<std::string>(grads[i].attr("__class__").attr("__name__"))
                                    << ", and the value is " << py::cast<py::str>(grads[i]) << ".";

mindspore/ccsrc/vm/vm.cc

@@ -472,7 +472,7 @@ void FinalVM::InstPushPrim(const VectorRef &args) {
 
 void FinalVM::SyncData(const py::object &arg) {
   if (py::isinstance<py::tuple>(arg)) {
-    py::tuple arg_list = py::cast<py::tuple>(arg);
+    auto arg_list = py::cast<py::tuple>(arg);
     for (size_t i = 0; i < arg_list.size(); i++) {
       SyncData(arg_list[i]);
     }

tests/ut/python/ops/test_ops.py

@@ -2464,12 +2464,7 @@ raise_set = [
     ('StridedSlice_1', {
         'block': (P.StridedSlice(), {'exception': ValueError}),
         'desc_const': [(1, 2, 3), (3, 4, 5), (1, 1)],
-        'desc_inputs': [[4, 5, 6, 7]]}),
-    ('StridedSlice_2', {
-        'block': (P.StridedSlice(), {'exception': ValueError}),
-        'desc_const': [(1, 2, 3), (3, 4, 5), (1, 1, 0)],
-        'desc_inputs': [[4, 5, 6, 7]]}),
-
+        'desc_inputs': [[4, 5, 6, 7]]})
 ]
 
 

tests/ut/python/pynative_mode/test_user_define_bprop_check.py

@@ -177,7 +177,7 @@ def test_user_define_bprop_check_parameter():
     grad_net = GradNet(net)
     with pytest.raises(RuntimeError) as ex:
         ret = grad_net(x, sens)
-    assert "in scope Default does not support Parameter data type." in str(ex.value)
+    assert "When user defines the net bprop, there are 1 parameters that is not supported in the net." in str(ex.value)
 
 
 def test_user_define_bprop_check_number():