Showing with 3 additions and 2 deletions.

+1 −1 python/plugins/GdalTools/tools/doGrid.py

+2 −1 src/app/qgisapp.cpp
diff --git a/python/plugins/GdalTools/tools/doGrid.py b/python/plugins/GdalTools/tools/doGrid.py
@@ -196,7 +196,7 @@ def algorithmArguments(self, index):
         arguments.append("angle=" + str(self.datametricsAngleSpin.value()))
         arguments.append("min_points=" + str(self.datametricsMinPointsSpin.value()))
         arguments.append("nodata=" + str(self.datametricsNoDataSpin.value()))
-      return arguments.join(":")
+      return ':'.join(arguments)
 
   def loadFields(self, vectorFile = ''):
       self.zfieldCombo.clear()

diff --git a/src/app/qgisapp.cpp b/src/app/qgisapp.cpp
@@ -796,7 +796,8 @@ QgisApp::~QgisApp()
 
   delete QgsProject::instance();
 
-  mPythonUtils->exitPython();
+  if ( mPythonUtils )
+    mPythonUtils->exitPython();
   delete mPythonUtils;
 }