sort imports using isort. tested.

core/views/logbooks.py

@@ -1,27 +1,27 @@
 import datetime
-import time
 import os.path
 import re
+import time
 
 import django.db.models
-from django.db.models import Min, Max
-from django.urls import reverse
+from django.db.models import Max, Min
 from django.http import HttpResponse, HttpResponseRedirect
 from django.shortcuts import render
 from django.template import Context, loader
 from django.template.defaultfilters import slugify
+from django.urls import reverse
 from django.utils import timezone
 from django.views.generic.list import ListView
 
-from troggle.core.models.troggle import Expedition, Person, PersonExpedition
-from troggle.core.utils import TROG
+import troggle.settings as settings
 from troggle.core.models.caves import LogbookEntry, PersonTrip
 from troggle.core.models.survex import SurvexBlock, Wallet
-from .auth import login_required_if_public
+from troggle.core.models.troggle import Expedition, Person, PersonExpedition
+from troggle.core.utils import TROG
 from troggle.parsers.logbooks import LoadLogbookForExpedition
 from troggle.parsers.people import GetPersonExpeditionNameLookup
 
-import troggle.settings as settings
+from .auth import login_required_if_public
 
 '''These views are for logbook items when they appear in an 'expedition' page
 and for persons: their individual pages and their perseonexpedition pages.