From b09ea956fc070987d0d7f3dca617edd81ba77d59 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Sat, 21 Jan 2017 13:25:26 +0100
Subject: [PATCH] fix possible crash in destructor of FeaturePythonPyT template

---
 src/App/FeaturePythonPyImp.h   | 1 +
 src/App/FeaturePythonPyImp.inl | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/src/App/FeaturePythonPyImp.h b/src/App/FeaturePythonPyImp.h
index 3926bfff7a..d040ea01b6 100644
--- a/src/App/FeaturePythonPyImp.h
+++ b/src/App/FeaturePythonPyImp.h
@@ -24,6 +24,7 @@
 #define APP_FEATUREPYTHONPYIMP_H
 
 #include <Base/BaseClass.h>
+#include <Base/Interpreter.h>
 #include <App/PropertyContainerPy.h>
 
 #define PYTHON_TYPE_DEF(_class_, _subclass_) \
diff --git a/src/App/FeaturePythonPyImp.inl b/src/App/FeaturePythonPyImp.inl
index a71e476066..cc6e2acffc 100644
--- a/src/App/FeaturePythonPyImp.inl
+++ b/src/App/FeaturePythonPyImp.inl
@@ -84,12 +84,14 @@ template<class FeaturePyT>
 FeaturePythonPyT<FeaturePyT>::FeaturePythonPyT(Base::BaseClass *pcObject, PyTypeObject *T)
     : FeaturePyT(reinterpret_cast<typename FeaturePyT::PointerType>(pcObject), T)
 {
+    Base::PyGILStateLocker lock;
     dict_methods = PyDict_New();
 }
 
 template<class FeaturePyT>
 FeaturePythonPyT<FeaturePyT>::~FeaturePythonPyT()
 {
+    Base::PyGILStateLocker lock;
     Py_DECREF(dict_methods);
 }