add run interface for standalone executor, test=develop (#35761)

paddle/fluid/pybind/pybind.cc

@@ -1992,6 +1992,26 @@ All parameter, weight, gradient are variables in Paddle.
                feed_tensors.push_back(t);
              }
 
+             paddle::framework::FetchList ret;
+             {
+               pybind11::gil_scoped_release release;
+               ret = self.Run(feed_names, feed_tensors, fetch_names);
+             }
+             return py::cast(std::move(ret));
+           })
+      .def("run",
+           [](StandaloneExecutor &self,
+              const std::unordered_map<std::string, framework::Tensor>
+                  &input_dict,
+              std::vector<std::string> fetch_names) {
+             std::vector<framework::Tensor> feed_tensors;
+             std::vector<std::string> feed_names;
+
+             for (auto &item : input_dict) {
+               feed_names.push_back(item.first);
+               feed_tensors.push_back(item.second);
+             }
+
              paddle::framework::FetchList ret;
              {
                pybind11::gil_scoped_release release;