python/plugins/processing/core/VectorWriter.py

@@ -51,7 +51,7 @@ def __init__(self, fileName, encoding, fields, geometryType,
 
         if encoding is None:
             settings = QSettings()
-            encoding = settings.value('/Processing/encoding', 'System')
+            encoding = settings.value('/Processing/encoding', 'System', type=str)
 
         if self.fileName.startswith(self.MEMORY_LAYER_PREFIX):
             self.isMemory = True

python/plugins/processing/modeler/ModelerDialog.py

@@ -57,6 +57,10 @@ def __init__(self, alg=None):
         self.hasChanged = False
         self.setupUi(self)
 
+        self.setWindowFlags(Qt.WindowMinimizeButtonHint |
+                            Qt.WindowMaximizeButtonHint |
+                            Qt.WindowCloseButtonHint)
+
         self.tabWidget.setCurrentIndex(0)
         self.scene = ModelerScene(self)
         self.scene.setSceneRect(QRectF(0, 0, 4000, 4000))

python/plugins/processing/outputs/OutputVector.py

@@ -87,7 +87,7 @@ def getVectorWriter(self, fields, geomType, crs, options=None):
 
         if self.encoding is None:
             settings = QSettings()
-            self.encoding = settings.value('/Processing/encoding', 'System')
+            self.encoding = settings.value('/Processing/encoding', 'System', type=str)
 
         w = VectorWriter(self.value, self.encoding, fields, geomType,
                          crs, options)