disable error hooks when querying for plugin metadata

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@9651 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: wonder

src/python/qgspythonutilsimpl.cpp

@@ -147,6 +147,11 @@ void QgsPythonUtilsImpl::installErrorHook()
   runString( "sys.excepthook = qgis_except_hook" );
 }
 
+void QgsPythonUtilsImpl::uninstallErrorHook()
+{
+  runString( "sys.excepthook = sys.__excepthook__" );
+}
+
 void QgsPythonUtilsImpl::installConsoleHooks()
 {
   runString( "sys.displayhook = console_display_hook\n" );
@@ -419,12 +424,15 @@ QString QgsPythonUtilsImpl::getPluginMetadata( QString pluginName, QString funct
   QString command = pluginName + "." + function + "()";
   QString retval = "???";
 
+  // temporary disable error hook - UI will handle this gracefully
+  uninstallErrorHook();
   PyObject* obj = PyRun_String( command.toLocal8Bit().data(), Py_eval_input, mMainDict, mMainDict );
+  
   if ( PyErr_Occurred() )
   {
     PyErr_Print(); // just print it to console
     PyErr_Clear();
-    return "__error__";
+    retval = "__error__";
   }
   else if ( PyString_Check( obj ) )
   {
@@ -436,6 +444,8 @@ QString QgsPythonUtilsImpl::getPluginMetadata( QString pluginName, QString funct
     retval = "__error__";
   }
   Py_XDECREF( obj );
+  
+  installErrorHook();
   return retval;
 }
 

src/python/qgspythonutilsimpl.h

@@ -112,6 +112,8 @@ class QgsPythonUtilsImpl : public QgsPythonUtils
 
     void installErrorHook();
 
+    void uninstallErrorHook();
+    
     QString getTraceback();
 
     //! reference to module __main__