[processing] use cmp_to_key to ensure Python3 compatibility

volaya · volaya · commit b2fd1a456045 · 2016-10-05T12:38:53.000+02:00
Conflicts:
	python/plugins/processing/gui/wrappers.py
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:
