sort imports using isort. tested.

core/views/statistics.py

@@ -1,23 +1,27 @@
 import datetime
+import operator
 import os.path
 import re
-import operator
 from collections import OrderedDict
 
 import django.db.models
-from django.db.models import Min, Max
+from django.db.models import Max, Min
 from django.shortcuts import render
 from django.template import Context, loader
 from django.template.defaultfilters import slugify
 from django.utils import timezone
-#from django.views.generic.list import ListView
-
-from troggle.core.models.troggle import Expedition, Person, PersonExpedition, DataIssue
-from troggle.core.models.caves import Cave, LogbookEntry, Entrance
-from troggle.core.models.survex import SurvexBlock, SurvexStation
-from troggle.parsers.people import GetPersonExpeditionNameLookup, foreign_friends
 
 import troggle.settings as settings
+from troggle.core.models.caves import Cave, Entrance, LogbookEntry
+from troggle.core.models.survex import SurvexBlock, SurvexStation
+from troggle.core.models.troggle import (DataIssue, Expedition, Person,
+                                         PersonExpedition)
+from troggle.parsers.people import (GetPersonExpeditionNameLookup,
+                                    foreign_friends)
+
+#from django.views.generic.list import ListView
+
+
 
 '''Very simple report pages summarizing data about the whole set of expeditions and of
 the status of data inconsistencies