[processing] use cmp_to_key to ensure Python3 compatibility

Conflicts: python/plugins/processing/gui/wrappers.py
qgis · Oct 5, 2016 · b2fd1a4 · b2fd1a4
1 parent e04780a
commit b2fd1a4
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/python/plugins/processing/gui/wrappers.py b/python/plugins/processing/gui/wrappers.py
@@ -30,6 +30,7 @@
 
 import locale
 import os
+from functools import cmp_to_key
 
 from qgis.core import QgsCoordinateReferenceSystem, QgsVectorLayer
 from qgis.PyQt.QtWidgets import QCheckBox, QComboBox, QLineEdit, QPlainTextEdit
@@ -813,7 +814,7 @@ def getFields(self):
         for field in self._layer.fields():
             if not fieldTypes or field.type() in fieldTypes:
                 fieldNames.add(unicode(field.name()))
-        return sorted(list(fieldNames), cmp=locale.strcoll)
+        return sorted(list(fieldNames), key=cmp_to_key(locale.strcoll))
 
     def setValue(self, value):
         if self.param.multiple: