diff --git a/ietf/api/tests.py b/ietf/api/tests.py
index 75351c798..1972a3e00 100644
--- a/ietf/api/tests.py
+++ b/ietf/api/tests.py
@@ -1,5 +1,6 @@
 # Copyright The IETF Trust 2015-2019, All Rights Reserved
 
+import json
 import os
 import sys
 
diff --git a/ietf/doc/tests_ballot.py b/ietf/doc/tests_ballot.py
index 026f7c96b..fa679b25b 100644
--- a/ietf/doc/tests_ballot.py
+++ b/ietf/doc/tests_ballot.py
@@ -19,7 +19,7 @@ from ietf.name.models import BallotPositionName
 from ietf.iesg.models import TelechatDate
 from ietf.person.models import Person, PersonalApiKey
 from ietf.person.factories import PersonFactory
-from ietf.utils.test_utils import TestCase, login_testing_unauthorized
+from ietf.utils.test_utils import TestCase, unicontent, login_testing_unauthorized
 from ietf.utils.mail import outbox, empty_outbox
 from ietf.utils.text import unwrap
 
diff --git a/ietf/doc/tests_charter.py b/ietf/doc/tests_charter.py
index 0bad514ea..49d8c5b5e 100644
--- a/ietf/doc/tests_charter.py
+++ b/ietf/doc/tests_charter.py
@@ -20,7 +20,7 @@ from ietf.group.factories import RoleFactory, GroupFactory
 from ietf.group.models import Group, GroupMilestone
 from ietf.iesg.models import TelechatDate
 from ietf.person.models import Person
-from ietf.utils.test_utils import TestCase
+from ietf.utils.test_utils import TestCase, unicontent
 from ietf.utils.mail import outbox, empty_outbox
 from ietf.utils.test_utils import login_testing_unauthorized
 
diff --git a/ietf/doc/tests_draft.py b/ietf/doc/tests_draft.py
index fcc7118cd..c728f477b 100644
--- a/ietf/doc/tests_draft.py
+++ b/ietf/doc/tests_draft.py
@@ -25,7 +25,7 @@ from ietf.person.factories import PersonFactory
 from ietf.person.models import Person, Email
 from ietf.meeting.models import Meeting, MeetingTypeName
 from ietf.iesg.models import TelechatDate
-from ietf.utils.test_utils import login_testing_unauthorized
+from ietf.utils.test_utils import login_testing_unauthorized, unicontent
 from ietf.utils.mail import outbox, empty_outbox
 from ietf.utils.test_utils import TestCase
 
diff --git a/ietf/doc/tests_material.py b/ietf/doc/tests_material.py
index cc414d9d7..1640e38db 100644
--- a/ietf/doc/tests_material.py
+++ b/ietf/doc/tests_material.py
@@ -19,7 +19,7 @@ from ietf.meeting.factories import MeetingFactory
 from ietf.meeting.models import Meeting, Session, SessionPresentation
 from ietf.name.models import SessionStatusName
 from ietf.person.models import Person
-from ietf.utils.test_utils import TestCase, login_testing_unauthorized
+from ietf.utils.test_utils import TestCase, login_testing_unauthorized, unicontent
 
 
 class GroupMaterialTests(TestCase):
diff --git a/ietf/doc/views_review.py b/ietf/doc/views_review.py
index 1cf5c0510..bd9fb73ac 100644
--- a/ietf/doc/views_review.py
+++ b/ietf/doc/views_review.py
@@ -769,7 +769,7 @@ def search_mail_archive(request, name, assignment_id):
     try:
         res["messages"] = mailarch.retrieve_messages(res["query_data_url"])[:MAX_RESULTS]
     except KeyError as e:
-        res["error"] = "No results found (%s)" % str(e)
+        res["error"] = "No results found"
     except Exception as e:
         res["error"] = "Retrieval from mail archive failed: %s" % str(e)
         # raise # useful when debugging
diff --git a/ietf/group/tests.py b/ietf/group/tests.py
index 6b37b4f90..72fd4552f 100644
--- a/ietf/group/tests.py
+++ b/ietf/group/tests.py
@@ -19,7 +19,7 @@ from ietf.group.factories import GroupFactory, RoleFactory
 from ietf.utils.test_runner import set_coverage_checking
 from ietf.person.factories import EmailFactory
 from ietf.person.models import Person
-from ietf.utils.test_utils import login_testing_unauthorized, TestCase
+from ietf.utils.test_utils import login_testing_unauthorized, TestCase, unicontent
 
 if   getattr(settings,'SKIP_DOT_TO_PDF', False):
     skip_dot_to_pdf = True
diff --git a/ietf/group/tests_review.py b/ietf/group/tests_review.py
index ea8e80e89..71863a22c 100644
--- a/ietf/group/tests_review.py
+++ b/ietf/group/tests_review.py
@@ -8,7 +8,7 @@ from pyquery import PyQuery
 
 from django.urls import reverse as urlreverse
 
-from ietf.utils.test_utils import login_testing_unauthorized, TestCase, reload_db_objects
+from ietf.utils.test_utils import login_testing_unauthorized, TestCase, unicontent, reload_db_objects
 from ietf.doc.models import TelechatDocEvent
 from ietf.group.models import Role
 from ietf.iesg.models import TelechatDate
diff --git a/ietf/iesg/views.py b/ietf/iesg/views.py
index ce478b7b1..1fceb0323 100644
--- a/ietf/iesg/views.py
+++ b/ietf/iesg/views.py
@@ -179,7 +179,7 @@ def agenda_json(request, date=None):
 
                 s["docs"].append(docinfo)
 
-    return HttpResponse(json.dumps(res, indent=2), content_type='application/json')
+    return HttpResponse(json.dumps(res, indent=2), content_type='text/plain')
 
 # def past_agendas(request):
 #     # This is not particularly useful with the current way of constructing
diff --git a/ietf/ietfauth/tests.py b/ietf/ietfauth/tests.py
index cb96b73e1..a8bd0a93a 100644
--- a/ietf/ietfauth/tests.py
+++ b/ietf/ietfauth/tests.py
@@ -14,7 +14,7 @@ from django.conf import settings
 
 import debug                            # pyflakes:ignore
 
-from ietf.utils.test_utils import TestCase, login_testing_unauthorized
+from ietf.utils.test_utils import TestCase, login_testing_unauthorized, unicontent
 from ietf.utils.mail import outbox, empty_outbox
 from ietf.group.models import Group, Role, RoleName
 from ietf.group.factories import GroupFactory, RoleFactory
diff --git a/ietf/ipr/mail.py b/ietf/ipr/mail.py
index 0daa54f2d..809af13e8 100644
--- a/ietf/ipr/mail.py
+++ b/ietf/ipr/mail.py
@@ -1,5 +1,4 @@
 # Copyright The IETF Trust 2014-2019, All Rights Reserved
-
 import base64
 import email
 import datetime
@@ -7,11 +6,8 @@ from dateutil.tz import tzoffset
 import os
 import pytz
 import re
-
 from django.template.loader import render_to_string
 
-import debug                            # pyflakes:ignore
-
 from ietf.ipr.models import IprEvent
 from ietf.message.models import Message
 from ietf.person.models import Person
diff --git a/ietf/liaisons/tests.py b/ietf/liaisons/tests.py
index 3d56cccf0..3a57ad591 100644
--- a/ietf/liaisons/tests.py
+++ b/ietf/liaisons/tests.py
@@ -1,5 +1,6 @@
 # Copyright The IETF Trust 2009-2019, All Rights Reserved
 import datetime, os, shutil
+import json
 
 import debug    # pyflakes:ignore
 
@@ -10,7 +11,7 @@ from django.db.models import Q
 from io import StringIO
 from pyquery import PyQuery
 
-from ietf.utils.test_utils import TestCase, login_testing_unauthorized
+from ietf.utils.test_utils import TestCase, login_testing_unauthorized, unicontent
 from ietf.utils.mail import outbox
 
 from ietf.group.factories import GroupFactory, RoleFactory
diff --git a/ietf/mailtrigger/tests.py b/ietf/mailtrigger/tests.py
index db5d0281a..6868c5b77 100644
--- a/ietf/mailtrigger/tests.py
+++ b/ietf/mailtrigger/tests.py
@@ -1,7 +1,7 @@
 # Copyright The IETF Trust 2015-2019, All Rights Reserved
 from django.urls import reverse as urlreverse
 
-from ietf.utils.test_utils import TestCase
+from ietf.utils.test_utils import TestCase, unicontent
 
 class EventMailTests(TestCase):
 
diff --git a/ietf/message/tests.py b/ietf/message/tests.py
index 13e599568..679404e2a 100644
--- a/ietf/message/tests.py
+++ b/ietf/message/tests.py
@@ -3,7 +3,7 @@ import datetime
 
 from django.urls import reverse as urlreverse
 
-from ietf.utils.test_utils import TestCase
+from ietf.utils.test_utils import TestCase, unicontent
 from ietf.utils.mail import outbox
 
 from ietf.message.models import Message, SendQueue
diff --git a/ietf/nomcom/models.py b/ietf/nomcom/models.py
index 249958cb7..16d229ed7 100644
--- a/ietf/nomcom/models.py
+++ b/ietf/nomcom/models.py
@@ -22,10 +22,7 @@ from ietf.nomcom.utils import (initialize_templates_for_group,
                                initialize_questionnaire_for_position,
                                initialize_requirements_for_position,
                                initialize_description_for_topic,
-                               delete_nomcom_templates,
-                               EncryptedException,
-                              )
-from ietf.utils.log import log
+                               delete_nomcom_templates)
 from ietf.utils.models import ForeignKey
 from ietf.utils.pipe import pipe
 from ietf.utils.storage import NoLocationMigrationFileSystemStorage
diff --git a/ietf/person/models.py b/ietf/person/models.py
index 06bb77cad..bfc329d0f 100644
--- a/ietf/person/models.py
+++ b/ietf/person/models.py
@@ -338,7 +338,7 @@ class PersonalApiKey(models.Model):
         import struct, hashlib, base64
         try:
             key = base64.urlsafe_b64decode(s)
-        except TypeError:
+        except TypeError as e:
             return None
 
         id, salt, hash = struct.unpack(KEY_STRUCT, key)
diff --git a/ietf/person/tests.py b/ietf/person/tests.py
index 21ec57091..0da5b98ef 100644
--- a/ietf/person/tests.py
+++ b/ietf/person/tests.py
@@ -3,6 +3,7 @@
 
 
 import datetime
+import json
 from pyquery import PyQuery
 from io import StringIO
 from django.urls import reverse as urlreverse
diff --git a/ietf/redirects/tests.py b/ietf/redirects/tests.py
index 9dbf8f574..175a1bd43 100644
--- a/ietf/redirects/tests.py
+++ b/ietf/redirects/tests.py
@@ -50,7 +50,7 @@ REDIRECT_TESTS = {
     '/public/idindex.cgi?command=do_search_id&filename=draft-mills-sntp-v4-00.txt':
         '/drafts/?filename=draft-mills-sntp-v4-00.txt',
     '/public/idindex.cgi?command=do_search_id&filename=draft-ietf-isis-interoperable&search_button=SEARCH':
-        '/drafts/?filename=draft-ietf-isis-interoperable&search_button=SEARCH',
+        '/drafts/?search_button=SEARCH&filename=draft-ietf-isis-interoperable',
     '/public/idindex.cgi?command=do_search_id&filename=rfc0038.txt':
         '/drafts/?filename=rfc0038.txt',
     '/public/idindex.cgi?command=id_detail&id=7096':
diff --git a/ietf/secr/meetings/blue_sheets.py b/ietf/secr/meetings/blue_sheets.py
index 676542bad..327e2d970 100644
--- a/ietf/secr/meetings/blue_sheets.py
+++ b/ietf/secr/meetings/blue_sheets.py
@@ -1,7 +1,7 @@
 # Copyright The IETF Trust 2013-2019, All Rights Reserved
 from django.conf import settings
 
-r'''
+'''
 RTF quick reference (from Word2007RTFSpec9.doc):
 \fs24       : sets the font size to 24 half points
 \header     : header on all pages
diff --git a/ietf/secr/sreq/tests.py b/ietf/secr/sreq/tests.py
index 4108b48f3..18f7750c5 100644
--- a/ietf/secr/sreq/tests.py
+++ b/ietf/secr/sreq/tests.py
@@ -4,7 +4,7 @@ import datetime
 
 import debug                            # pyflakes:ignore
 
-from ietf.utils.test_utils import TestCase
+from ietf.utils.test_utils import TestCase, unicontent
 from ietf.group.factories import GroupFactory, RoleFactory
 from ietf.meeting.models import Session, ResourceAssociation
 from ietf.meeting.factories import MeetingFactory, SessionFactory
diff --git a/ietf/secr/utils/test.py b/ietf/secr/utils/test.py
index 9fca188b1..d0864d230 100644
--- a/ietf/secr/utils/test.py
+++ b/ietf/secr/utils/test.py
@@ -18,4 +18,4 @@ def copy_roles(person):
     me.role_set.all().delete()
     for role in person.role_set.all():
         Role.objects.create(person=me,email_id='rcross@amsl.com',name=role.name,group=role.group)
-    print(me.role_set.all())
\ No newline at end of file
+    print me.role_set.all()
\ No newline at end of file
diff --git a/ietf/utils/management/commands/create_group_wikis.py b/ietf/utils/management/commands/create_group_wikis.py
index c9a007ecf..459ccc47b 100644
--- a/ietf/utils/management/commands/create_group_wikis.py
+++ b/ietf/utils/management/commands/create_group_wikis.py
@@ -1,4 +1,5 @@
 # Copyright The IETF Trust 2016-2019, All Rights Reserved
+# Copyright 2016 IETF Trust
 
 import os
 import copy
@@ -60,8 +61,6 @@ class Command(BaseCommand):
             self.note("Running %s %s ..." % (os.path.basename(cmd), " ".join(quoted_args)))
             command = [ cmd, ] + list(args)
             code, out, err = pipe(command)
-            out = out.decode()
-            err = err.decode()
             msg = None
             if code != 0:
                 msg = "Error %s: %s when executing '%s'" % (code, err, " ".join(command))
diff --git a/ietf/utils/management/commands/pyflakes.py b/ietf/utils/management/commands/pyflakes.py
index a0cefbac5..ab2b5e046 100644
--- a/ietf/utils/management/commands/pyflakes.py
+++ b/ietf/utils/management/commands/pyflakes.py
@@ -72,7 +72,6 @@ def check(codeString, filename, verbosity=1):
                 sys.stderr.write('F')
             else:
                 sys.stderr.write('.')
-            sys.stderr.flush()
         if verbosity > 1:
             sys.stderr.write("  %s\n" % filename)
         return messages
@@ -85,7 +84,7 @@ def checkPath(filename, verbosity):
     @return: the number of warnings printed
     """
     try:
-        return check(open(filename).read() + '\n', filename, verbosity)
+        return check(open(filename, 'U').read() + '\n', filename, verbosity)
     except IOError as msg:
         return ["%s: %s" % (filename, msg.args[1])]
     except TypeError:
@@ -101,7 +100,7 @@ def checkPaths(filenames, verbosity):
                         try:
                             warnings.extend(checkPath(os.path.join(dirpath, filename), verbosity))
                         except TypeError as e:
-                            print("Exception while processing dirpath=%s, filename=%s: %s" % (dirpath, filename, e ))
+                            print(("Exception while processing dirpath=%s, filename=%s: %s" % (dirpath, filename,e )))
                             raise
         else:
             warnings.extend(checkPath(arg, verbosity))
diff --git a/ietf/utils/management/commands/send_gdpr_consent_request.py b/ietf/utils/management/commands/send_gdpr_consent_request.py
index ee0282f68..b9a37e4a3 100644
--- a/ietf/utils/management/commands/send_gdpr_consent_request.py
+++ b/ietf/utils/management/commands/send_gdpr_consent_request.py
@@ -97,7 +97,7 @@ class Command(BaseCommand):
                             'person': person, 'settings': settings,
                             },
                         )
-                    PersonEvent.objects.create(person=person, type='gdpr_notice_email', 
+                    e = PersonEvent.objects.create(person=person, type='gdpr_notice_email', 
                                                desc="Sent GDPR notice email to %s with confirmation deadline %s" % (to, date))
                     time.sleep(delay)
                 
diff --git a/ietf/utils/test_runner.py b/ietf/utils/test_runner.py
index 4f7a67dbb..252643668 100644
--- a/ietf/utils/test_runner.py
+++ b/ietf/utils/test_runner.py
@@ -239,6 +239,7 @@ def save_test_results(failures, test_labels):
             tfile.write("%s OK\n" % (timestr, ))
     tfile.close()
 
+
 def set_coverage_checking(flag=True):
     global template_coverage_collection
     global code_coverage_collection
diff --git a/ietf/utils/tests.py b/ietf/utils/tests.py
index 815869ada..855139547 100644
--- a/ietf/utils/tests.py
+++ b/ietf/utils/tests.py
@@ -11,8 +11,8 @@ from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
 from fnmatch import fnmatch
 from importlib import import_module
-#from .pipe import pipe
-#from io import StringIO
+from .pipe import pipe
+from io import StringIO
 from textwrap import dedent
 from unittest import skipIf
 from tempfile import mkdtemp
@@ -20,7 +20,7 @@ from tempfile import mkdtemp
 from django.apps import apps
 from django.contrib.auth.models import User
 from django.conf import settings
-#from django.core.management import call_command
+from django.core.management import call_command
 from django.template import Context
 from django.template.defaulttags import URLNode
 from django.template.loader import get_template
@@ -29,8 +29,8 @@ from django.urls import reverse as urlreverse
 
 import debug                            # pyflakes:ignore
 
-#from ietf.group.factories import GroupFactory
-#from ietf.group.models import Group
+from ietf.group.factories import GroupFactory
+from ietf.group.models import Group
 from ietf.person.name import name_parts, unidecode_name
 from ietf.submit.tests import submission_file
 from ietf.utils.bower_storage import BowerStorageFinder
@@ -294,43 +294,43 @@ class TestWikiGlueManagementCommand(TestCase):
         shutil.rmtree(os.path.dirname(self.wiki_dir_pattern))
         shutil.rmtree(os.path.dirname(self.svn_dir_pattern))
 
-#     def test_wiki_create_output(self):
-#         for type in ['wg','rg','ag','area']:
-#             GroupFactory(type_id=type)
-#         groups = Group.objects.filter(
-#                         type__slug__in=['wg','rg','ag','area'],
-#                         state__slug='active'
-#                     ).order_by('acronym')
-#         out = StringIO()
-#         err = StringIO()
-#         call_command('create_group_wikis', stdout=out, stderr=err, verbosity=2,
-#             wiki_dir_pattern=self.wiki_dir_pattern,
-#             svn_dir_pattern=self.svn_dir_pattern,
-#         )
-#         command_output = out.getvalue()
-#         command_errors = err.getvalue()
-#         self.assertEqual("", command_errors)
-#         for group in groups:
-#             self.assertIn("Processing group '%s'" % group.acronym, command_output)
-#             # Do a bit of verification using trac-admin, too
-#             admin_code, admin_output, admin_error = pipe(
-#                 'trac-admin %s permission list' % (self.wiki_dir_pattern % group.acronym))
-#             self.assertEqual(admin_code, 0)
-#             roles = group.role_set.filter(name_id__in=['chair', 'secr', 'ad'])
-#             for role in roles:
-#                 user = role.email.address.lower()
-#                 self.assertIn("Granting admin permission for %s" % user, command_output)
-#                 self.assertIn(user, admin_output)
-#             docs = group.document_set.filter(states__slug='active', type_id='draft')
-#             for doc in docs:
-#                 name = doc.name
-#                 name = name.replace('draft-','')
-#                 name = name.replace(doc.stream_id+'-', '')
-#                 name = name.replace(group.acronym+'-', '')
-#                 self.assertIn("Adding component %s"%name, command_output)
-#         for page in settings.TRAC_WIKI_PAGES_TEMPLATES:
-#             self.assertIn("Adding page %s" % os.path.basename(page), command_output)
-#         self.assertIn("Indexing default repository", command_output)
+    def test_wiki_create_output(self):
+        for type in ['wg','rg','ag','area']:
+            GroupFactory(type_id=type)
+        groups = Group.objects.filter(
+                        type__slug__in=['wg','rg','ag','area'],
+                        state__slug='active'
+                    ).order_by('acronym')
+        out = StringIO()
+        err = StringIO()
+        call_command('create_group_wikis', stdout=out, stderr=err, verbosity=2,
+            wiki_dir_pattern=self.wiki_dir_pattern,
+            svn_dir_pattern=self.svn_dir_pattern,
+        )
+        command_output = out.getvalue()
+        command_errors = err.getvalue()
+        self.assertEqual("", command_errors)
+        for group in groups:
+            self.assertIn("Processing group '%s'" % group.acronym, command_output)
+            # Do a bit of verification using trac-admin, too
+            admin_code, admin_output, admin_error = pipe(
+                'trac-admin %s permission list' % (self.wiki_dir_pattern % group.acronym))
+            self.assertEqual(admin_code, 0)
+            roles = group.role_set.filter(name_id__in=['chair', 'secr', 'ad'])
+            for role in roles:
+                user = role.email.address.lower()
+                self.assertIn("Granting admin permission for %s" % user, command_output)
+                self.assertIn(user, admin_output)
+            docs = group.document_set.filter(states__slug='active', type_id='draft')
+            for doc in docs:
+                name = doc.name
+                name = name.replace('draft-','')
+                name = name.replace(doc.stream_id+'-', '')
+                name = name.replace(group.acronym+'-', '')
+                self.assertIn("Adding component %s"%name, command_output)
+        for page in settings.TRAC_WIKI_PAGES_TEMPLATES:
+            self.assertIn("Adding page %s" % os.path.basename(page), command_output)
+        self.assertIn("Indexing default repository", command_output)
 
 OMITTED_APPS = [
     'ietf.secr.meetings',
diff --git a/ietf/utils/text.py b/ietf/utils/text.py
index 232ea1489..d82a2fcb1 100644
--- a/ietf/utils/text.py
+++ b/ietf/utils/text.py
@@ -3,6 +3,7 @@
 
 import re
 import textwrap
+import types
 import unicodedata
 
 from django.utils.functional import keep_lazy
diff --git a/ietf/utils/validators.py b/ietf/utils/validators.py
index aa627df7b..77e4bbf09 100644
--- a/ietf/utils/validators.py
+++ b/ietf/utils/validators.py
@@ -77,12 +77,9 @@ def validate_mime_type(file, valid):
     mime_type, encoding = get_mime_type(raw)
     # work around mis-identification of text where a line has 'virtual' as
     # the first word:
-    if mime_type == 'text/x-c++' and re.search(rb'(?m)^virtual\s', raw):
-        mod = raw.replace(b'virtual', b' virtual'))
+    if mime_type == 'text/x-c++' and re.search('(?m)^virtual\s', raw):
+        mod = raw.replace(str('virtual'), str(' virtual'))
         mime_type, encoding = get_mime_type(mod)
-    debug.show('mime_type')
-    debug.show('encoding')
-    debug.show('valid')
     if valid and not mime_type in valid:
         raise ValidationError('Found content with unexpected mime type: %s.  Expected one of %s.' %
                                     (mime_type, ', '.join(valid) ))
diff --git a/requirements.txt b/requirements.txt
index bca7b425d..f034e6b8a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,6 +32,7 @@ httplib2>=0.10.3
 jsonfield>=1.0.3		# for SubmissionCheck.  This is https://github.com/bradjasper/django-jsonfield/.
 jwcrypto>=0.4.0			# for signed notifications
 #lxml>=3.4.0                    # from PyQuery; 
+mimeparse>=0.1.3		# from TastyPie
 mock>=2.0.0
 mysqlclient>=1.3.13
 oauth2client>=4.0.0		# required by google-api-python-client, but not always pulled in
@@ -47,7 +48,6 @@ pyquery>=1.2.13,!=1.2.14	# Pyqyery 1.2.14 fails on some selectors or stacked sel
 python-dateutil>=2.2
 python-magic>=0.4.6
 python-memcached>=1.48		# for django.core.cache.backends.memcached
-python-mimeparse>=1.6		# from TastyPie
 pytz>=2014.7
 #pyzmail>=1.0.3
 requests!=2.12.*