Use six.moves.xrange instead of xrange

frappe/utils/goal.py

@@ -3,6 +3,7 @@
 
 from __future__ import unicode_literals
 import frappe
+from six.moves import xrange
 
 def get_monthly_results(goal_doctype, goal_field, date_col, filter_str, aggregation = 'sum'):
 	'''Get monthly aggregation values for given field of doctype'''