!10565 910 c++ library python env finalize

From: @zhoufeng54
Reviewed-by: @xu-yfei,@kisnwang
Signed-off-by: @xu-yfei

mindspore/_check_version.py

@@ -216,7 +216,8 @@ class AscendEnvChecker(EnvChecker):
         try:
             # pylint: disable=unused-import
             import te
-        except RuntimeError:
+        # pylint: disable=broad-except
+        except Exception:
             if Path(self.tbe_path).is_dir():
                 if os.getenv('LD_LIBRARY_PATH'):
                     os.environ['LD_LIBRARY_PATH'] = self.tbe_path + ":" + os.environ['LD_LIBRARY_PATH']

mindspore/ccsrc/cxx_api/graph/ms/ms_graph_impl.cc

@@ -123,12 +123,13 @@ Status MsGraphImpl::FinalizeEnv() {
     return FAILED;
   }
 
-  InitPython();  // CloseTsd will release python git
-  if (!context::CloseTsd(ms_context)) {
-    MS_LOG(ERROR) << "CloseTsd failed!";
-    return FAILED;
+  {
+    PythonEnvGuard guard;
+    if (!context::CloseTsd(ms_context)) {
+      MS_LOG(ERROR) << "CloseTsd failed!";
+      return FAILED;
+    }
   }
-  FinalizePython();
 
   init_flag_ = false;
   MS_LOG(INFO) << "End finalize env";

mindspore/ccsrc/cxx_api/python_utils.cc

@@ -131,4 +131,16 @@ void FinalizePython() {
     Py_Finalize();
   }
 }
+
+PythonEnvGuard::PythonEnvGuard() {
+  origin_init_status_ = PythonIsInited();
+  InitPython();
+}
+
+PythonEnvGuard::~PythonEnvGuard() {
+  // finalize when init by this
+  if (!origin_init_status_) {
+    FinalizePython();
+  }
+}
 }  // namespace mindspore::api

mindspore/ccsrc/cxx_api/python_utils.h

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 #ifndef MINDSPORE_CCSRC_CXXAPI_PYTHON_UTILS_H
 #define MINDSPORE_CCSRC_CXXAPI_PYTHON_UTILS_H
 
@@ -22,6 +21,14 @@ void RegAllOp();
 bool PythonIsInited();
 void InitPython();
 void FinalizePython();
-}  // namespace mindspore::api
 
+class PythonEnvGuard {
+ public:
+  PythonEnvGuard();
+  ~PythonEnvGuard();
+
+ private:
+  bool origin_init_status_;
+};
+}  // namespace mindspore::api
 #endif  // MINDSPORE_CCSRC_CXXAPI_PYTHON_UTILS_H