diff --git a/core/TESTS/test_imports.py b/core/TESTS/test_imports.py
index 943b5d9..40d0a5f 100644
--- a/core/TESTS/test_imports.py
+++ b/core/TESTS/test_imports.py
@@ -18,11 +18,12 @@ them.
 
 https://docs.djangoproject.com/en/3.0/topics/testing/tools/
 """
-import unittest
 import re
 import subprocess
+import unittest
+
+from django.test import Client, SimpleTestCase, TestCase
 
-from django.test import TestCase, SimpleTestCase, Client
 
 class SimpleTest(SimpleTestCase):
     def test_test_setting(self):
@@ -35,78 +36,93 @@ class SimpleTest(SimpleTestCase):
         from troggle.core.models.caves import Cave
     def test_import_parsers_surveys(self):
         #from PIL import Image
-        from troggle.core.utils import save_carefully
         from functools import reduce
+
+        from troggle.core.utils import save_carefully
     def test_import_parsers_survex(self):
-        import troggle.settings as settings
-        import troggle.core.models.troggle as models
-        import troggle.core.models.survex as models_survex
         import troggle.core.models.caves as models_caves
-        from troggle.parsers.people import GetPersonExpeditionNameLookup
+        import troggle.core.models.survex as models_survex
+        import troggle.core.models.troggle as models
+        import troggle.settings as settings
+        from troggle.core.views import (caves, drawings, other, scans,
+                                        statistics, survex, uploads)
+        from troggle.core.views.caves import cavepage, ent
         from troggle.core.views.other import frontpage
-        from troggle.core.views.caves import ent, cavepage
-        from troggle.core.views import scans, drawings, other, caves, statistics, survex, uploads
+        from troggle.parsers.people import GetPersonExpeditionNameLookup
     def test_import_views_uploads(self):
         from troggle.core.views.uploads import dwgupload, scanupload
     def test_import_parsers_QMs(self):
         from troggle.core.models.caves import QM, Cave, LogbookEntry
     def test_import_parsers_people(self):
         from html import unescape
+
         from unidecode import unidecode
     def test_import_parsers_logbooks(self):
         from django.template.defaultfilters import slugify
         from django.utils.timezone import get_current_timezone, make_aware
-        from troggle.core.models.troggle import DataIssue, Expedition
-        from troggle.core.models.caves import Cave, LogbookEntry, PersonTrip
+
         from parsers.people import GetPersonExpeditionNameLookup
+        from troggle.core.models.caves import Cave, LogbookEntry, PersonTrip
+        from troggle.core.models.troggle import DataIssue, Expedition
     def test_import_core_views_caves(self):
+        from django.conf import settings
+        from django.contrib.auth.decorators import login_required
         from django.http import HttpResponse, HttpResponseRedirect
         from django.shortcuts import get_object_or_404, render
-        import troggle.core.views.expo 
+
+        import troggle.core.views.expo
+        from troggle.core.forms import (CaveAndEntranceFormSet, CaveForm,
+                                        EntranceForm, EntranceLetterForm)
+        from troggle.core.models.caves import (QM, Area, Cave, CaveAndEntrance,
+                                               CaveSlug, Entrance,
+                                               EntranceSlug, SurvexStation)
         from troggle.core.models.troggle import Expedition
-        from troggle.core.models.caves import CaveSlug, Cave, CaveAndEntrance, QM, EntranceSlug, Entrance, Area, SurvexStation
-        from troggle.core.forms import CaveForm, CaveAndEntranceFormSet, EntranceForm, EntranceLetterForm
         from troggle.core.views.auth import login_required_if_public
-        from django.contrib.auth.decorators import login_required
-        from django.conf import settings
     def test_import_parsers_mix(self):
-        from troggle.parsers.logbooks import GetCaveLookup
-        import troggle.settings
         import troggle.parsers.caves
-        import troggle.parsers.people
         import troggle.parsers.drawings
-        import troggle.parsers.scans
         import troggle.parsers.logbooks
+        import troggle.parsers.people
         import troggle.parsers.QMs
-        import troggle.parsers.survex 
+        import troggle.parsers.scans
+        import troggle.parsers.survex
+        import troggle.settings
+        from troggle.parsers.logbooks import GetCaveLookup 
     def test_import_imports(self):
-        from django.core import management
-        from django.db import connection, close_old_connections, connections
         from django.contrib.auth.models import User
+        from django.core import management
+        from django.db import close_old_connections, connection, connections
         from django.http import HttpResponse
         from django.urls import reverse
 
     def test_import_urls(self):
         from django.conf import settings
-        from django.conf.urls import url, include
-        from django.contrib import admin
-        from django.contrib import auth
-        from django.urls import reverse, resolve
-        from django.views.generic.base import RedirectView 
+        from django.conf.urls import include, url
+        from django.contrib import admin, auth
+        from django.urls import resolve, reverse
+        from django.views.generic.base import RedirectView
         from django.views.generic.edit import UpdateView
         from django.views.generic.list import ListView
-        from troggle.core.views import other, caves, statistics, survex
+
+        from troggle.core.views import caves, other, statistics, survex
         from troggle.core.views.auth import expologin, expologout
-        from troggle.core.views.caves import ent, cavepage
-        from troggle.core.views.expo import expofiles_redirect, expofilessingle, expopage, editexpopage, mediapage, map, mapfile
-        from troggle.core.views.logbooks import expedition, personexpedition, Expeditions_tsvListView, Expeditions_jsonListView
-        from troggle.core.views.logbooks import get_logbook_entries, logbookentry
-        from troggle.core.views.logbooks import notablepersons, person, get_people
+        from troggle.core.views.caves import cavepage, ent
+        from troggle.core.views.expo import (editexpopage, expofiles_redirect,
+                                             expofilessingle, expopage, map,
+                                             mapfile, mediapage)
+        from troggle.core.views.logbooks import (Expeditions_jsonListView,
+                                                 Expeditions_tsvListView,
+                                                 expedition,
+                                                 get_logbook_entries,
+                                                 get_people, logbookentry,
+                                                 notablepersons, person,
+                                                 personexpedition)
         from troggle.core.views.other import controlpanel
-        from troggle.core.views.prospect import prospecting
-        from troggle.core.views.prospect import prospecting_image
-        from troggle.core.views.statistics import pathsreport, stats, dataissues
-        from troggle.core.views.survex import survexcaveslist, survexcavesingle, svx
+        from troggle.core.views.prospect import prospecting, prospecting_image
+        from troggle.core.views.statistics import (dataissues, pathsreport,
+                                                   stats)
+        from troggle.core.views.survex import (survexcavesingle,
+                                               survexcaveslist, svx)
 
 class SubprocessTest(TestCase):
 
@@ -123,8 +139,8 @@ class SubprocessTest(TestCase):
     def test_utf8(self):
         '''Expects that utf8 is the default encoding when opening files
         '''
-        import sys
         import locale
+        import sys
         self.assertTrue( sys.getdefaultencoding() == "utf-8", f'{sys.getdefaultencoding()} - UTF8 error in getdefaultencoding')
         self.assertTrue( sys.getfilesystemencoding() == "utf-8", f'{sys.getfilesystemencoding()} - UTF8 error in getfilesystemencoding')
         self.assertTrue( locale.getdefaultlocale()[1] == "UTF-8", f'{locale.getdefaultlocale()} - UTF8 error in locale.getdefaultlocale')
@@ -148,6 +164,7 @@ class SubprocessTest(TestCase):
         ''' Expects clean git repos with no added files and no merge failures
         '''
         from pathlib import Path
+
         import troggle.settings as settings
         TROGGLE_PATH = Path(settings.REPOS_ROOT_PATH) / "troggle"
         for cwd in [settings.SURVEX_DATA, settings.EXPOWEB, settings.DRAWINGS_DATA, TROGGLE_PATH]: 
@@ -179,6 +196,7 @@ class SubprocessTest(TestCase):
         ''' Expects no failures of survex files
         '''
         from pathlib import Path
+
         import troggle.settings as settings
         cwd = settings.SURVEX_DATA
         for survey in ["1623.svx", "1626.svx"]: 
diff --git a/core/TESTS/tests-cuyc-ignored.py b/core/TESTS/tests-cuyc-ignored.py
index 3e98f94..ac4e5b3 100644
--- a/core/TESTS/tests-cuyc-ignored.py
+++ b/core/TESTS/tests-cuyc-ignored.py
@@ -18,28 +18,30 @@ $ python manage.py test cuy.club --parallel
 Runs the tests in this file only
 """
 
-import unittest
 import re
-from django.test import TestCase, SimpleTestCase, TransactionTestCase, Client
+import unittest
+
+from django.test import Client, SimpleTestCase, TestCase, TransactionTestCase
+
 
 class ImportTest(TestCase):
     def test_import_imports(self):
-    # Need to go through all modules and copy all imports here
+    ed to go through all modules and copy all imports here
+        from io import StringIO
+
+        from cuy.club.models import (Article, Event, Member, Webpage,
+                                     WebpageCategory)
+        from cuy.website.views.generic import PUBLIC_LOGIN
         from django.conf import settings
         from django.contrib.auth.decorators import login_required
         from django.contrib.auth.models import User
         from django.core import management
         from django.db import connection, connections
-        from django.http import HttpResponse
+        from django.db.utils import IntegrityError
         from django.http import HttpResponse, HttpResponseRedirect
         from django.shortcuts import get_object_or_404, render
         from django.template.defaultfilters import slugify
         from django.utils.timezone import get_current_timezone, make_aware
-        from io import StringIO
-        from cuy.club.models import Member, Article, Event, WebpageCategory, Webpage
-        from cuy.website.views.generic import PUBLIC_LOGIN
-        from cuy.club.models import Member
-        from django.db.utils import IntegrityError
 
  
 class SimpleTest(SimpleTestCase):
@@ -110,9 +112,9 @@ class DataTests(TestCase ):
         self.assertIsNotNone(None, "Failed to enforce 'UNIQUE constraint' on saving two Member objects with same user_id")
 
     def test_article_invalid_date(self):
-        from cuy.club.models import Member, Article
-        from django.db.utils import IntegrityError
+        from cuy.club.models import Article, Member
         from django.core.exceptions import ValidationError
+        from django.db.utils import IntegrityError
 
         a = Article()
         m = self.member
@@ -126,9 +128,9 @@ class DataTests(TestCase ):
             self.assertIsNotNone(t, "Exception is not the expected 'invalid format'")
 
     def test_article_and_author_not_null(self):
-        from cuy.club.models import Member, Article
-        from django.db.utils import IntegrityError
+        from cuy.club.models import Article, Member
         from django.core.exceptions import ValidationError
+        from django.db.utils import IntegrityError
      
         a2 = Article()
         a2.publish ="2021-02-17 17:25"
@@ -143,9 +145,9 @@ class DataTests(TestCase ):
             self.assertIsNotNone(None, "Exception is not the expected 'NOT NULL constraint failed' IntegrityError")
 
     def test_article_and_author_ok(self):
-        from cuy.club.models import Member, Article
-        from django.db.utils import IntegrityError
+        from cuy.club.models import Article, Member
         from django.core.exceptions import ValidationError
+        from django.db.utils import IntegrityError
         m = self.member
         
         a3 = Article()
@@ -201,8 +203,8 @@ class FixturePageTests(TestCase):
 
     def test_fix_admin_login_fail(self):
         c = self.client
-        from django.contrib.auth.models import User
         from cuy.club.models import Member
+        from django.contrib.auth.models import User
         m = Member.objects.get(pk=9002)
         u = User.objects.get(username='bingo')
          
@@ -223,7 +225,7 @@ class ComplexLoginTests(TestCase):
     '''These test the login and capabilities of logged-in users'''
     def setUp(self):
         '''setUp runs once for each test in this class'''
-        from cuy.club.models import Member, MEMBER_TYPES, AFFILIATION
+        from cuy.club.models import AFFILIATION, MEMBER_TYPES, Member
         from django.contrib.auth.models import User
         m = Member()
         m.pk=8000
@@ -344,6 +346,7 @@ class ComplexLoginTests(TestCase):
 
     def test_committee_login(self):
         from django.contrib.auth.models import User
+
         # User must be associated with a Member for whom is_committee() is True
         c  = self.client # inherited from TestCase
         u  = self.user
@@ -407,7 +410,7 @@ class DynamicPageTests(TestCase):
     def test_full_yachts(self):
         '''Creating a WebpageCategory and an index webpage creates a valid url
         '''
-        from cuy.club.models import WebpageCategory, Webpage
+        from cuy.club.models import Webpage, WebpageCategory
         wc = WebpageCategory()
         wc.pk = 8000
         wc.id = 8000 
diff --git a/core/TESTS/tests.py b/core/TESTS/tests.py
index e74a11b..cc10c14 100644
--- a/core/TESTS/tests.py
+++ b/core/TESTS/tests.py
@@ -25,10 +25,11 @@ todo = '''ADD TESTS when we are redirecting /expofiles/ to a remote file-deliver
 - Add test for running cavern to produce a .3d file
 '''
 
-import unittest
 import re
+import unittest
 from http import HTTPStatus
-from django.test import TestCase, SimpleTestCase, Client
+
+from django.test import Client, SimpleTestCase, TestCase
 
 
 #class SimplePageTest(unittest.TestCase):
diff --git a/core/TESTS/tests_caves.py b/core/TESTS/tests_caves.py
index dd8f1df..732ebe8 100644
--- a/core/TESTS/tests_caves.py
+++ b/core/TESTS/tests_caves.py
@@ -2,11 +2,14 @@
 Modified for Expo April 2021.
 """
 
-import unittest
 import re
-from django.test import TestCase, SimpleTestCase, Client
+import unittest
+
+from django.test import Client, SimpleTestCase, TestCase
+
+from troggle.core.models.caves import Area, Cave
 from troggle.core.models.troggle import Expedition, Person, PersonExpedition
-from troggle.core.models.caves import Cave, Area
+
 
 class FixtureTests(TestCase):
     '''These just hit the database.
diff --git a/core/TESTS/tests_logins.py b/core/TESTS/tests_logins.py
index 364f16a..02eceb6 100644
--- a/core/TESTS/tests_logins.py
+++ b/core/TESTS/tests_logins.py
@@ -5,17 +5,18 @@ Philip Sargent (Feb.2021)
 Modified for Expo April 2021.
 """
 
-import unittest
-import re
 import pathlib
+import re
 import subprocess
+import unittest
 from http import HTTPStatus
 
-from django.test import TestCase, SimpleTestCase, TransactionTestCase, Client
+from django.test import Client, SimpleTestCase, TestCase, TransactionTestCase
+
+import troggle.settings as settings
 from troggle.core.models.survex import Wallet
 from troggle.core.models.troggle import Expedition
 
-import troggle.settings as settings
 
 class DataTests(TestCase ):
     '''These check that the NULL and NON-UNIQUE constraints are working in the database '''
diff --git a/core/admin.py b/core/admin.py
index 7bc78e5..c266a97 100644
--- a/core/admin.py
+++ b/core/admin.py
@@ -1,14 +1,18 @@
 import django.forms as forms
 from django.contrib import admin
+from django.core import serializers
 from django.forms import ModelForm
 from django.http import HttpResponse
-from django.core import serializers
 
+from troggle.core.models.caves import (QM, Area, Cave, CaveAndEntrance,
+                                       Entrance, LogbookEntry, PersonTrip)
+from troggle.core.models.survex import (DrawingFile, SingleScan, SurvexBlock,
+                                        SurvexDirectory, SurvexFile,
+                                        SurvexPersonRole, SurvexStation,
+                                        Wallet)
+from troggle.core.models.troggle import (DataIssue, Expedition, Person,
+                                         PersonExpedition)
 from troggle.core.views.other import exportlogbook
-from troggle.core.models.troggle import Person, PersonExpedition, Expedition, DataIssue
-from troggle.core.models.caves import Cave, Area, Entrance, CaveAndEntrance, LogbookEntry, PersonTrip, QM
-from troggle.core.models.survex import SurvexBlock, SurvexFile, SurvexPersonRole, SurvexStation, SurvexDirectory
-from troggle.core.models.survex import Wallet, SingleScan, DrawingFile
 
 '''This code significantly adds to the capabilities of the Django Management control panel for Troggle data.
 In particular, it enables JSON export of any data with 'export_as_json'
diff --git a/core/context.py b/core/context.py
index 9ac1f60..a8ebd0b 100644
--- a/core/context.py
+++ b/core/context.py
@@ -1,4 +1,5 @@
 from django.conf import settings
+
 from troggle.core.models.troggle import Expedition
 
 '''This is the only troggle-specific 'context processor' that troggle uses
diff --git a/core/forms.py b/core/forms.py
index 2dd9549..4b1399d 100644
--- a/core/forms.py
+++ b/core/forms.py
@@ -2,16 +2,18 @@ import string
 from datetime import date
 
 import django.forms as forms
+from django.contrib.admin.widgets import AdminDateWidget
 from django.forms import ModelForm
 from django.forms.models import modelformset_factory
-from django.contrib.admin.widgets import AdminDateWidget
+
+from troggle.core.models.caves import (QM, Cave, CaveAndEntrance, Entrance,
+                                       LogbookEntry)
+from troggle.core.models.troggle import Expedition, Person, PersonExpedition
+from troggle.core.views.editor_helpers import HTMLarea
 
 #from tinymce.widgets import TinyMCE
 
-from troggle.core.models.troggle import Person, PersonExpedition, Expedition
-from troggle.core.models.caves import Cave, LogbookEntry, QM, Entrance, CaveAndEntrance
 
-from troggle.core.views.editor_helpers import HTMLarea
 
 '''These are all the class-based Forms used by troggle.
 There are other, simpler, upload forms in view/uploads.py
diff --git a/core/management/commands/dummycmd.py b/core/management/commands/dummycmd.py
index 3628cf8..6e13011 100644
--- a/core/management/commands/dummycmd.py
+++ b/core/management/commands/dummycmd.py
@@ -1,10 +1,10 @@
 import os
 from optparse import make_option
 
-from django.db import connection
+from django.contrib.auth.models import User
 from django.core import management
 from django.core.management.base import BaseCommand, CommandError
-from django.contrib.auth.models import User
+from django.db import connection
 
 import settings
 
diff --git a/core/middleware.py b/core/middleware.py
index 06c159a..c535291 100644
--- a/core/middleware.py
+++ b/core/middleware.py
@@ -1,6 +1,7 @@
-from django.conf import settings
 from django import http
-from django.urls import reverse, resolve,Resolver404
+from django.conf import settings
+from django.urls import Resolver404, resolve, reverse
+
 """Non-standard django middleware is loaded from this file.
 
 """
diff --git a/core/models/caves.py b/core/models/caves.py
index 084bcdd..70a13ae 100644
--- a/core/models/caves.py
+++ b/core/models/caves.py
@@ -1,33 +1,30 @@
-import string
-import os
 import datetime
-import re
 import json
-import subprocess
 import operator
-from datetime import datetime, timezone
-
+import os
+import re
+import string
+import subprocess
 from collections import defaultdict
+from datetime import datetime, timezone
 from pathlib import Path
-
 from urllib.parse import urljoin
 
-import settings
-
-from django.db import models
-from django.core.files.storage import FileSystemStorage
+from django.conf import settings
 from django.contrib.auth.models import User
 from django.contrib.contenttypes.models import ContentType
-from django.db.models import Min, Max
-from django.conf import settings
-from django.urls import reverse
-from django.template import Context, loader
+from django.core.files.storage import FileSystemStorage
+from django.db import models
+from django.db.models import Max, Min
 from django.shortcuts import render
+from django.template import Context, loader
+from django.urls import reverse
 
-from troggle.core.models.troggle import TroggleModel, Person, Expedition, DataIssue
+import settings
 from troggle.core.models.survex import SurvexStation
-from troggle.core.utils import writetrogglefile
-from troggle.core.utils import TROG
+from troggle.core.models.troggle import (DataIssue, Expedition, Person,
+                                         TroggleModel)
+from troggle.core.utils import TROG, writetrogglefile
 
 # Use the TROG global object to cache the cave lookup list. No good for multi-user..
 Gcavelookup = TROG['caves']['gcavelookup']
diff --git a/core/models/survex.py b/core/models/survex.py
index c2a68bf..5ee3f17 100644
--- a/core/models/survex.py
+++ b/core/models/survex.py
@@ -1,14 +1,14 @@
-import os
-import re
+import datetime
 import json
 import operator
-import datetime
-from urllib.parse import urljoin
-from pathlib import Path
+import os
+import re
 from functools import reduce
+from pathlib import Path
+from urllib.parse import urljoin
 
-from django.db import models
 from django.conf import settings
+from django.db import models
 from django.urls import reverse
 
 # from troggle.core.models.troggle import DataIssue # circular import. Hmm
@@ -215,7 +215,8 @@ class Wallet(models.Model):
                                 waldata["date"] = thisdate.isoformat()
                             except:
                                 message = f"! {str(self.walletname)} Date formatting failure {thisdate}. Failed to load from {jsonfile} JSON file"
-                                from troggle.core.models.troggle import DataIssue
+                                from troggle.core.models.troggle import \
+                                    DataIssue
                                 DataIssue.objects.update_or_create(parser='scans', message=message, url=wurl) 
                         except:
                             message = f"! {str(self.walletname)} Date format not ISO {datestr}. Failed to load from {jsonfile} JSON file"
diff --git a/core/models/troggle.py b/core/models/troggle.py
index ca3df80..999e826 100644
--- a/core/models/troggle.py
+++ b/core/models/troggle.py
@@ -1,27 +1,25 @@
-import string
-import os
 import datetime
+import os
 import re
 import resource
-from subprocess import call
-
-from urllib.parse import urljoin
+import string
 from decimal import Decimal, getcontext
+from subprocess import call
+from urllib.parse import urljoin
+
 getcontext().prec=2 #use 2 significant figures for decimal calculations
 
-import settings
-
-from django.db import models
+from django.conf import settings
 from django.contrib import admin
 from django.contrib.auth.models import User
 from django.contrib.contenttypes.models import ContentType
-from django.conf import settings
-
-from django.urls import reverse
-from django.template import Context, loader
 from django.core.files.storage import FileSystemStorage
+from django.db import models
+from django.template import Context, loader
+from django.urls import reverse
 
-import troggle.core.models.survex 
+import settings
+import troggle.core.models.survex
 from troggle.core.utils import get_process_memory
 
 """This file declares TroggleModel which inherits from django.db.models.Model 
diff --git a/core/utils.py b/core/utils.py
index 8b85cde..5b1599b 100644
--- a/core/utils.py
+++ b/core/utils.py
@@ -1,27 +1,26 @@
-import string
-import os
 import datetime
+import logging
+import os
+import random
 import re
 import resource
-import random
-import logging
+import string
 import subprocess
-from pathlib import Path
-
-from urllib.parse import urljoin
 from decimal import Decimal, getcontext
+from pathlib import Path
+from urllib.parse import urljoin
+
 getcontext().prec=2 #use 2 significant figures for decimal calculations
 
-import settings
-
-from django.db import models
+from django.conf import settings
 from django.contrib import admin
 from django.contrib.auth.models import User
 from django.contrib.contenttypes.models import ContentType
-from django.conf import settings
-
-from django.urls import reverse
+from django.db import models
 from django.template import Context, loader
+from django.urls import reverse
+
+import settings
 
 '''This file declares TROG a globally visible object for caches.
 
diff --git a/core/views/auth.py b/core/views/auth.py
index a4dc9d9..86583e7 100644
--- a/core/views/auth.py
+++ b/core/views/auth.py
@@ -1,10 +1,11 @@
 from builtins import str
 
 from django.conf import settings
-from django.shortcuts import render, redirect
-from django.contrib.auth import authenticate, login, logout
+from django.contrib.auth import authenticate
 from django.contrib.auth import forms as auth_forms
+from django.contrib.auth import login, logout
 from django.contrib.auth.decorators import login_required
+from django.shortcuts import redirect, render
 from django.utils.http import is_safe_url
 
 """This enforces the login requirement for non-public pages using 
diff --git a/core/views/caves.py b/core/views/caves.py
index 2bb2794..0b291f3 100644
--- a/core/views/caves.py
+++ b/core/views/caves.py
@@ -1,25 +1,29 @@
 import os
-import string
 import re
-import settings
-import urllib.parse
+import string
 import subprocess
+import urllib.parse
 from pathlib import Path
 
 from django import forms
 from django.conf import settings
-from django.urls import reverse
-from django.http import HttpResponse, HttpResponseRedirect, HttpResponseNotFound
+from django.core.exceptions import MultipleObjectsReturned, ObjectDoesNotExist
+from django.http import (HttpResponse, HttpResponseNotFound,
+                         HttpResponseRedirect)
 from django.shortcuts import get_object_or_404, render
-from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
-from django.urls import NoReverseMatch
+from django.urls import NoReverseMatch, reverse
 
+import settings
 import troggle.settings as settings
+from troggle.core.forms import (CaveAndEntranceFormSet, CaveForm, EntranceForm,
+                                EntranceLetterForm)
+from troggle.core.models.caves import (QM, Area, Cave, CaveAndEntrance,
+                                       CaveSlug, Entrance, EntranceSlug,
+                                       GetCaveLookup, SurvexStation)
+from troggle.core.models.troggle import DataIssue, Expedition
+from troggle.core.utils import write_and_commit, writetrogglefile
 from troggle.core.views import expo
-from troggle.core.models.troggle import Expedition, DataIssue
-from troggle.core.models.caves import CaveSlug, Cave, CaveAndEntrance, QM, EntranceSlug, Entrance, Area, SurvexStation, GetCaveLookup
-from troggle.core.forms import CaveForm, CaveAndEntranceFormSet, EntranceForm, EntranceLetterForm
-from troggle.core.utils import writetrogglefile, write_and_commit
+
 from .auth import login_required_if_public
 
 '''Manages the complex procedures to assemble a cave description out of the compnoents
diff --git a/core/views/drawings.py b/core/views/drawings.py
index a24664d..d2e635f 100644
--- a/core/views/drawings.py
+++ b/core/views/drawings.py
@@ -1,14 +1,17 @@
-import os, stat
+import os
 import re
+import stat
 from pathlib import Path
-from urllib.parse import urljoin, unquote as urlunquote
+from urllib.parse import unquote as urlunquote
+from urllib.parse import urljoin
 
 from django.conf import settings
-from django.shortcuts import render
 from django.http import HttpResponse
+from django.shortcuts import render
 
 from troggle.core.models.survex import DrawingFile
 from troggle.core.views.expo import getmimetype
+
 #import parsers.surveys
 
 '''Some of these views serve files as binary blobs, and simply set the mime type based on the file extension,
diff --git a/core/views/editor_helpers.py b/core/views/editor_helpers.py
index d7fd05f..01829cf 100644
--- a/core/views/editor_helpers.py
+++ b/core/views/editor_helpers.py
@@ -1,18 +1,20 @@
-from django.shortcuts import render, redirect
-from django.http import HttpResponse, HttpResponseRedirect, Http404, JsonResponse
-
-from django.urls import reverse, resolve
-from django.template import Context, loader
-import re, io
-from PIL import Image
+import io
+import re
 from pathlib import Path
+
 import django.forms as forms
-import troggle.settings as settings
-
+from django.http import (Http404, HttpResponse, HttpResponseRedirect,
+                         JsonResponse)
+from django.shortcuts import redirect, render
+from django.template import Context, loader
+from django.urls import resolve, reverse
 from django.views.decorators.csrf import ensure_csrf_cookie
-from .auth import login_required_if_public
+from PIL import Image
 
-from troggle.core.utils import write_and_commit, WriteAndCommitError
+import troggle.settings as settings
+from troggle.core.utils import WriteAndCommitError, write_and_commit
+
+from .auth import login_required_if_public
 
 MAX_IMAGE_WIDTH = 1000
 MAX_IMAGE_HEIGHT = 800
diff --git a/core/views/expo.py b/core/views/expo.py
index c443c38..2a0a22a 100644
--- a/core/views/expo.py
+++ b/core/views/expo.py
@@ -1,28 +1,26 @@
 import os
 import re
-
-from sys import getfilesystemencoding as sys_getfilesystemencoding
-
 from pathlib import Path
-from urllib.parse import urljoin, unquote as urlunquote
+from sys import getfilesystemencoding as sys_getfilesystemencoding
+from urllib.parse import unquote as urlunquote
+from urllib.parse import urljoin
 from urllib.request import urlopen
 
-from django.shortcuts import render, redirect
-from django.http import HttpResponse, HttpResponseRedirect, Http404
-from django.urls import reverse, resolve
-from django.template import Context, loader
-from django.views.decorators.csrf import ensure_csrf_cookie
-from django.contrib import admin
-
 import django.forms as forms
+from django.contrib import admin
+from django.http import Http404, HttpResponse, HttpResponseRedirect
+from django.shortcuts import redirect, render
+from django.template import Context, loader
+from django.urls import resolve, reverse
+from django.views.decorators.csrf import ensure_csrf_cookie
 
 import troggle.core.views.caves
 import troggle.settings as settings
-from .auth import login_required_if_public
 from troggle.core.models.caves import Cave
-from troggle.core.utils import write_and_commit, WriteAndCommitError
+from troggle.core.utils import WriteAndCommitError, write_and_commit
 from troggle.core.views.editor_helpers import HTMLarea
 
+from .auth import login_required_if_public
 
 '''Formerly a separate package called 'flatpages' written by Martin Green 2011. 
 This was NOT django.contrib.flatpages which stores HTML in the database, so the name was changed to expopages.
diff --git a/core/views/logbooks.py b/core/views/logbooks.py
index 40d664c..21cc849 100644
--- a/core/views/logbooks.py
+++ b/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.
diff --git a/core/views/other.py b/core/views/other.py
index 0f3a414..0e02180 100644
--- a/core/views/other.py
+++ b/core/views/other.py
@@ -1,23 +1,26 @@
-import re, os
+import os
+import re
 import subprocess
 from pathlib import Path
 
 from django import forms
-
 from django.conf import settings
-from django.urls import reverse
+from django.core.files.storage import FileSystemStorage, default_storage
 from django.db.models import Q
 from django.http import HttpResponse, HttpResponseRedirect
 from django.shortcuts import render
 from django.template import Context, loader
-from django.core.files.storage import FileSystemStorage, default_storage
+from django.urls import reverse
 
-from troggle.parsers.imports import import_caves, import_people, import_surveyscans
-from troggle.parsers.imports import import_logbooks, import_QMs, import_drawingsfiles, import_survex
+from troggle.core.models.caves import QM, Cave, LogbookEntry, PersonTrip
+from troggle.core.models.survex import DrawingFile
 # from databaseReset import reinit_db # don't do this. databaseRest runs code *at import time*
 from troggle.core.models.troggle import Expedition, Person, PersonExpedition
-from troggle.core.models.caves import LogbookEntry, QM, Cave, PersonTrip
-from troggle.core.models.survex import DrawingFile
+from troggle.parsers.imports import (import_caves, import_drawingsfiles,
+                                     import_logbooks, import_people,
+                                     import_QMs, import_survex,
+                                     import_surveyscans)
+
 from .auth import login_required_if_public
 
 '''Utility functions and code to serve the control panel and individual user's 
@@ -37,18 +40,18 @@ def todos(request, module):
     '''produces todo text from module
     We could automate this to find all those strings automatically
     '''
+    from troggle.core.forms import todo as forms
+    from troggle.core.middleware import todo as middleware
+    from troggle.core.models.caves import todo as modelcaves
     from troggle.core.TESTS.tests import todo as tests
-    from troggle.core.views.logbooks import todo as viewlogbooks
-    from troggle.core.views.survex import todo as viewsurvex
     from troggle.core.views.caves import todo as viewcaves
     from troggle.core.views.drawings import todo as viewdrawings
+    from troggle.core.views.logbooks import todo as viewlogbooks
+    from troggle.core.views.survex import todo as viewsurvex
     from troggle.parsers.caves import todo as parserscaves
-    from troggle.parsers.logbooks import todo as parserslogbooks
     from troggle.parsers.drawings import todo as parsersdrawings
+    from troggle.parsers.logbooks import todo as parserslogbooks
     from troggle.parsers.survex import todo as parserssurvex
-    from troggle.core.models.caves import todo as modelcaves
-    from troggle.core.middleware import todo as middleware
-    from troggle.core.forms import todo as forms
     tododict = {'views/other': todo,
         'tests': tests, 
         'views/logbooks': viewlogbooks, 
diff --git a/core/views/prospect.py b/core/views/prospect.py
index 4b30f5d..4021f5e 100644
--- a/core/views/prospect.py
+++ b/core/views/prospect.py
@@ -1,18 +1,21 @@
 import os
-import string
 import re
+import string
 import urllib.parse
-# from pathlib import Path
 
 from django.http import HttpResponse
 from django.shortcuts import render
-# from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
 
 import troggle.settings as settings
-from troggle.core.models.caves import Entrance, Area, SurvexStation, Cave
+from troggle.core.models.caves import Area, Cave, Entrance, SurvexStation
 from troggle.core.views.caves import caveKey
 from troggle.parsers.survex import MapLocations
 
+# from pathlib import Path
+
+# from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
+
+
 ''' Generates the prospecting guide document.
 
 Also produces the overlay of points on top of a prospecting_image map - to be deleted.
diff --git a/core/views/scans.py b/core/views/scans.py
index a7ce27a..e2af7f8 100644
--- a/core/views/scans.py
+++ b/core/views/scans.py
@@ -1,20 +1,22 @@
-import os, stat
-import re
 import datetime
+import os
+import re
+import stat
 from pathlib import Path
-from urllib.parse import urljoin, unquote as urlunquote
+from urllib.parse import unquote as urlunquote
+from urllib.parse import urljoin
 from urllib.request import urlopen
 
 from django.conf import settings
-from django.shortcuts import render
-from django.http import HttpResponse
 from django.db import transaction
+from django.http import HttpResponse
+from django.shortcuts import render
 
-from troggle.core.models.survex import Wallet, SingleScan, SurvexBlock
-from troggle.core.models.troggle import Person, Expedition
-from troggle.core.models.troggle import DataIssue
 from troggle.core.models.caves import GetCaveLookup
+from troggle.core.models.survex import SingleScan, SurvexBlock, Wallet
+from troggle.core.models.troggle import DataIssue, Expedition, Person
 from troggle.core.views.expo import getmimetype
+
 #from troggle.parsers.people import GetPersonExpeditionNameLookup
 
 #import parsers.surveys
diff --git a/core/views/statistics.py b/core/views/statistics.py
index 34fe66c..d804bb5 100644
--- a/core/views/statistics.py
+++ b/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
diff --git a/core/views/survex.py b/core/views/survex.py
index 8b9b508..0a4c7f1 100644
--- a/core/views/survex.py
+++ b/core/views/survex.py
@@ -1,25 +1,25 @@
-import re
-import os
 import datetime
 import difflib
-from pathlib import Path
+import os
+import re
 import socket
+from pathlib import Path
 
 from django import forms
-from django.http import HttpResponseRedirect, HttpResponse, Http404
+from django.core.exceptions import MultipleObjectsReturned, ObjectDoesNotExist
+from django.http import Http404, HttpResponse, HttpResponseRedirect
 from django.shortcuts import render
 from django.template.context_processors import csrf
 from django.views.decorators.csrf import ensure_csrf_cookie
 
-from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
-
-import troggle.settings as settings
 import parsers.survex
-from troggle.core.models.troggle import Expedition, Person, PersonExpedition 
-from troggle.core.models.survex import SurvexBlock, SurvexPersonRole, SurvexFile, SurvexDirectory
-from troggle.core.models.caves import Cave, PersonTrip, LogbookEntry
+import troggle.settings as settings
+from troggle.core.models.caves import Cave, LogbookEntry, PersonTrip
+from troggle.core.models.survex import (SurvexBlock, SurvexDirectory,
+                                        SurvexFile, SurvexPersonRole)
+from troggle.core.models.troggle import Expedition, Person, PersonExpedition
+from troggle.core.utils import WriteAndCommitError, only_commit
 from troggle.parsers.people import GetPersonExpeditionNameLookup
-from troggle.core.utils import only_commit, WriteAndCommitError
 
 '''Everything that views survexfiles 
 but also displays data on a cave or caves when there is ambiguity
diff --git a/core/views/uploads.py b/core/views/uploads.py
index 648e340..5f40b30 100644
--- a/core/views/uploads.py
+++ b/core/views/uploads.py
@@ -1,41 +1,43 @@
-import re, os, socket
-import subprocess
-import json
-import settings
-import urllib
-import operator
 import datetime
-
-from pathlib import Path
+import json
+import operator
+import os
+import re
+import socket
+import subprocess
+import urllib
 from functools import reduce
+from pathlib import Path
 from urllib.parse import unquote
 
 from django import forms
-
 from django.conf import settings
-from django.urls import reverse
+from django.core.exceptions import MultipleObjectsReturned, ObjectDoesNotExist
+from django.core.files.storage import FileSystemStorage, default_storage
 from django.db.models import Q
 from django.http import HttpResponse, HttpResponseRedirect
 from django.shortcuts import render
 from django.template import Context, loader
-from django.core.files.storage import FileSystemStorage, default_storage
-from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
+from django.urls import reverse
 
-
-#from troggle import settings
-from troggle.parsers.imports import import_caves, import_people, import_surveyscans
-from troggle.parsers.imports import import_logbooks, import_QMs, import_drawingsfiles, import_survex
-from troggle.parsers.scans import contentsjson
+import settings
+from troggle.core.models.caves import QM, Cave, LogbookEntry, PersonTrip
+from troggle.core.models.survex import (DrawingFile, SurvexBlock, SurvexFile,
+                                        SurvexPersonRole, Wallet)
 # from databaseReset import reinit_db # don't do this. databaseRest runs code *at import time*
-from troggle.core.models.troggle import DataIssue
-from troggle.core.models.troggle import Expedition, Person, PersonExpedition
-from troggle.core.models.caves import LogbookEntry, QM, Cave, PersonTrip
-from troggle.core.models.survex import DrawingFile, Wallet, SurvexBlock, SurvexFile, SurvexPersonRole
-from troggle.core.views.scans import oldwallet, caveifywallet
+from troggle.core.models.troggle import (DataIssue, Expedition, Person,
+                                         PersonExpedition)
 from troggle.core.views.caves import getCave
-
+from troggle.core.views.scans import caveifywallet, oldwallet
+#from troggle import settings
+from troggle.parsers.imports import (import_caves, import_drawingsfiles,
+                                     import_logbooks, import_people,
+                                     import_QMs, import_survex,
+                                     import_surveyscans)
+from troggle.parsers.scans import contentsjson
 
 from .auth import login_required_if_public
+
 #from django.views.decorators.csrf import ensure_csrf_cookie, csrf_exempt
 
 '''File upload 'views'