diff --git a/ietf/api/serializer.py b/ietf/api/serializer.py
index 98e276efe..dd178b419 100644
--- a/ietf/api/serializer.py
+++ b/ietf/api/serializer.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2018-2019, All Rights Reserved
+# Copyright The IETF Trust 2018-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -6,7 +6,6 @@ from __future__ import absolute_import, print_function, unicode_literals
 
 import hashlib
 import json
-import six
 
 from django.core.cache import cache
 from django.core.exceptions import ObjectDoesNotExist, FieldError
@@ -154,7 +153,7 @@ class AdminJsonSerializer(Serializer):
                             if hasattr(field_value, "_meta"):
                                 self._current[name] = self.expand_related(field_value, name)
                             else:
-                                self._current[name] = six.text_type(field_value)
+                                self._current[name] = str(field_value)
             except ObjectDoesNotExist:
                 pass
             except AttributeError:
diff --git a/ietf/bin/rfc-editor-index-updates b/ietf/bin/rfc-editor-index-updates
index e9ac43a6c..0a6315a2f 100755
--- a/ietf/bin/rfc-editor-index-updates
+++ b/ietf/bin/rfc-editor-index-updates
@@ -11,7 +11,7 @@ import sys
 import syslog
 import traceback
 
-from six.moves.urllib.request import urlopen
+from urllib.request import urlopen
 
 # boilerplate
 basedir = os.path.abspath(os.path.join(os.path.dirname(__file__), "../.."))
diff --git a/ietf/bin/rfc-editor-queue-updates b/ietf/bin/rfc-editor-queue-updates
index a279346c7..bc1d4ab8b 100755
--- a/ietf/bin/rfc-editor-queue-updates
+++ b/ietf/bin/rfc-editor-queue-updates
@@ -3,7 +3,7 @@
 import os
 import socket
 import sys
-from six.moves.urllib.request import urlopen
+from urllib.request import urlopen
 
 # boilerplate
 basedir = os.path.abspath(os.path.join(os.path.dirname(__file__), "../.."))
diff --git a/ietf/checks.py b/ietf/checks.py
index 235824c68..a1d76520a 100644
--- a/ietf/checks.py
+++ b/ietf/checks.py
@@ -5,12 +5,10 @@
 from __future__ import absolute_import, print_function, unicode_literals
 
 import os
-import six
 import sys
 import time
 from textwrap import dedent
-if six.PY3:
-    from typing import List, Tuple      # pyflakes:ignore
+from typing import List, Tuple      # pyflakes:ignore
 
 import debug                            # pyflakes:ignore
 debug.debug = True
diff --git a/ietf/community/views.py b/ietf/community/views.py
index c1a061e5d..8c1647384 100644
--- a/ietf/community/views.py
+++ b/ietf/community/views.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2012-2019, All Rights Reserved
+# Copyright The IETF Trust 2012-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -7,7 +7,6 @@ from __future__ import absolute_import, print_function, unicode_literals
 import csv
 import datetime
 import json
-import six
 import uuid
 
 from django.http import HttpResponse, HttpResponseForbidden, HttpResponseRedirect, Http404
@@ -204,7 +203,7 @@ def export_to_csv(request, username=None, acronym=None, group_type=None):
         row.append(e.time.strftime("%Y-%m-%d") if e else "")
         row.append(strip_tags(doc.friendly_state()))
         row.append(doc.group.acronym if doc.group else "")
-        row.append(six.text_type(doc.ad) if doc.ad else "")
+        row.append(str(doc.ad) if doc.ad else "")
         e = doc.latest_event()
         row.append(e.time.strftime("%Y-%m-%d") if e else "")
         writer.writerow([v.encode("utf-8") for v in row])
diff --git a/ietf/doc/feeds.py b/ietf/doc/feeds.py
index bcdefe112..5ee3b8bad 100644
--- a/ietf/doc/feeds.py
+++ b/ietf/doc/feeds.py
@@ -1,11 +1,10 @@
-# Copyright The IETF Trust 2007-2019, All Rights Reserved
+# Copyright The IETF Trust 2007-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
 from __future__ import absolute_import, print_function, unicode_literals
 
 import datetime
-import six
 
 from django.contrib.syndication.views import Feed, FeedDoesNotExist
 from django.utils.feedgenerator import Atom1Feed, Rss201rev2Feed
@@ -50,7 +49,7 @@ class DocumentChangesFeed(Feed):
         return item.time
 
     def item_author_name(self, item):
-        return six.text_type(item.by)
+        return str(item.by)
 
     def item_link(self, item):
         return urlreverse('ietf.doc.views_doc.document_history', kwargs=dict(name=item.doc.canonical_name())) + "#history-%s" % item.pk
diff --git a/ietf/doc/fields.py b/ietf/doc/fields.py
index 7266f5d34..e4d1ed16d 100644
--- a/ietf/doc/fields.py
+++ b/ietf/doc/fields.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2014-2019, All Rights Reserved
+# Copyright The IETF Trust 2014-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -83,7 +83,7 @@ class SearchableDocumentsField(forms.CharField):
             "model_name": self.model.__name__.lower()
         })
 
-        return ",".join(six.text_type(o.pk) for o in value)
+        return ",".join(str(o.pk) for o in value)
 
     def clean(self, value):
         value = super(SearchableDocumentsField, self).clean(value)
diff --git a/ietf/doc/mails.py b/ietf/doc/mails.py
index a36c06185..112c38292 100644
--- a/ietf/doc/mails.py
+++ b/ietf/doc/mails.py
@@ -6,7 +6,6 @@
 from __future__ import absolute_import, print_function, unicode_literals
 
 import datetime
-import six
 import textwrap
 
 from django.template.loader import render_to_string
@@ -288,7 +287,7 @@ def generate_publication_request(request, doc):
         approving_body = "IRSG"
         consensus_body = doc.group.acronym.upper()
     else:
-        approving_body = six.text_type(doc.stream)
+        approving_body = str(doc.stream)
         consensus_body = approving_body
 
     e = doc.latest_event(WriteupDocEvent, type="changed_rfc_editor_note_text")
diff --git a/ietf/doc/templatetags/ietf_filters.py b/ietf/doc/templatetags/ietf_filters.py
index 61fe9404c..afb2eacb3 100644
--- a/ietf/doc/templatetags/ietf_filters.py
+++ b/ietf/doc/templatetags/ietf_filters.py
@@ -22,10 +22,11 @@ from django.utils.encoding import force_str # pyflakes:ignore force_str is used
 
 import debug                            # pyflakes:ignore
 
-from ietf.doc.models import ConsensusDocEvent
-from ietf.utils.text import wordwrap, fill, wrap_text_if_unwrapped
-from ietf.utils.html import sanitize_fragment
 from ietf.doc.models import BallotDocEvent
+from ietf.doc.models import ConsensusDocEvent
+from ietf.utils.html import sanitize_fragment
+from ietf.utils import log
+from ietf.utils.text import wordwrap, fill, wrap_text_if_unwrapped
 
 register = template.Library()
 
@@ -70,7 +71,7 @@ def parse_email_list(value):
 
 
     """
-    if value and isinstance(value, (six.binary_type, six.text_type)): # testing for 'value' being true isn't necessary; it's a fast-out route
+    if value and isinstance(value, str): # testing for 'value' being true isn't necessary; it's a fast-out route
         addrs = re.split(", ?", value)
         ret = []
         for addr in addrs:
@@ -79,6 +80,8 @@ def parse_email_list(value):
                 name = email
             ret.append('<a href="mailto:%s">%s</a>' % ( email.replace('&', '&amp;'), escape(name) ))
         return mark_safe(", ".join(ret))
+    elif value and isinstance(value, bytes):
+        log.assertion('isinstance(value, str)')        
     else:
         return value
 
@@ -151,10 +154,12 @@ def sanitize(value):
 @register.filter(name='bracket')
 def square_brackets(value):
     """Adds square brackets around text."""
-    if isinstance(value, (six.binary_type, six.text_type)):
+    if isinstance(value, str):
         if value == "":
              value = " "
         return "[ %s ]" % value
+    elif isinstance(value, bytes):
+        log.assertion('isinstance(value, str)')
     elif value > 0:
         return "[ X ]"
     elif value < 0:
@@ -344,7 +349,7 @@ def expires_soon(x,request):
 
 @register.filter(name='startswith')
 def startswith(x, y):
-    return six.text_type(x).startswith(y)
+    return str(x).startswith(y)
 
 @register.filter
 def has_role(user, role_names):
diff --git a/ietf/doc/views_doc.py b/ietf/doc/views_doc.py
index 73cab0089..a3443003f 100644
--- a/ietf/doc/views_doc.py
+++ b/ietf/doc/views_doc.py
@@ -42,7 +42,6 @@ import io
 import json
 import os
 import re
-import six
 
 from six.moves.urllib.parse import quote
 
@@ -1397,7 +1396,7 @@ def add_sessionpresentation(request,name):
     if doc.group:
         sessions = sorted(sessions,key=lambda x:0 if x.group==doc.group else 1)
 
-    session_choices = [(s.pk, six.text_type(s)) for s in sessions]
+    session_choices = [(s.pk, str(s)) for s in sessions]
 
     if request.method == 'POST':
         version_form = VersionForm(request.POST,choices=version_choices)
diff --git a/ietf/group/tests_info.py b/ietf/group/tests_info.py
index 514e0d636..ae2aed9d5 100644
--- a/ietf/group/tests_info.py
+++ b/ietf/group/tests_info.py
@@ -10,7 +10,6 @@ import calendar
 import datetime
 import io
 import bleach
-import six
 
 from pyquery import PyQuery
 from tempfile import NamedTemporaryFile
@@ -1442,7 +1441,7 @@ class StatusUpdateTests(TestCase):
             response = self.client.get(url)
             self.assertEqual(response.status_code,200)
             q=PyQuery(response.content)
-            self.assertTrue(bleach.linkify(escape(event.desc)) in six.text_type(q('pre')))
+            self.assertTrue(bleach.linkify(escape(event.desc)) in str(q('pre')))
             self.assertFalse(q('a#edit_button'))
             self.client.login(username=chair.person.user.username,password='%s+password'%chair.person.user.username)
             response = self.client.get(url)
diff --git a/ietf/group/tests_review.py b/ietf/group/tests_review.py
index f498a2edb..2f9058c0a 100644
--- a/ietf/group/tests_review.py
+++ b/ietf/group/tests_review.py
@@ -6,7 +6,6 @@ from __future__ import absolute_import, print_function, unicode_literals
 
 import datetime
 import debug      # pyflakes:ignore
-import six
 
 from pyquery import PyQuery
 
@@ -522,7 +521,7 @@ class ReviewTests(TestCase):
         # i.e. the document name is expected twice in the output (#2118)
         self.assertEqual(generated_text.count(review_req1.doc.name), 2)
         self.assertEqual(generated_text.count('(-0 lc reviewed)'), 2)  # previous completed assignment
-        self.assertTrue(six.text_type(Person.objects.get(user__username="marschairman")) in generated_text)
+        self.assertTrue(str(Person.objects.get(user__username="marschairman")) in generated_text)
 
         empty_outbox()
         r = self.client.post(url, {
diff --git a/ietf/group/views.py b/ietf/group/views.py
index 6994625b2..90429a4e7 100644
--- a/ietf/group/views.py
+++ b/ietf/group/views.py
@@ -44,7 +44,6 @@ import json
 import math
 import os
 import re
-import six
 
 from tempfile import mkstemp
 from collections import OrderedDict, defaultdict
@@ -1539,7 +1538,7 @@ def manage_review_requests(request, acronym, group_type=None, assignment_status=
         saving = form_action.startswith("save")
 
         # check for conflicts
-        review_requests_dict = { six.text_type(r.pk): r for r in review_requests if r.pk}
+        review_requests_dict = { str(r.pk): r for r in review_requests if r.pk}
         posted_reqs = set(request.POST.getlist("reviewrequest", []))
         posted_reqs.discard(u'None')
         current_reqs = set(review_requests_dict.keys())
diff --git a/ietf/idindex/index.py b/ietf/idindex/index.py
index 03d5f2b2d..35197cdb4 100644
--- a/ietf/idindex/index.py
+++ b/ietf/idindex/index.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2013-2019, All Rights Reserved
+# Copyright The IETF Trust 2013-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -10,7 +10,6 @@ from __future__ import absolute_import, print_function, unicode_literals
 import datetime
 import os
 import pytz
-import six
 
 from django.conf import settings
 from django.template.loader import render_to_string
@@ -195,7 +194,7 @@ def all_id2_txt():
                 area = d.group.parent.acronym
         fields.append(area)
         # 9 responsible AD name
-        fields.append(six.text_type(d.ad) if d.ad else "")
+        fields.append(str(d.ad) if d.ad else "")
         # 10
         fields.append(d.intended_std_level.name if d.intended_std_level else "")
         # 11
diff --git a/ietf/idindex/tests.py b/ietf/idindex/tests.py
index 07b0eebd7..4b234f412 100644
--- a/ietf/idindex/tests.py
+++ b/ietf/idindex/tests.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2009-2019, All Rights Reserved
+# Copyright The IETF Trust 2009-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -8,7 +8,6 @@ import datetime
 import io
 import os
 import shutil
-import six
 
 from django.conf import settings
 
@@ -102,7 +101,7 @@ class IndexTests(TestCase):
         self.assertEqual(t[6], draft.latest_event(type="new_revision").time.strftime("%Y-%m-%d"))
         self.assertEqual(t[7], draft.group.acronym)
         self.assertEqual(t[8], draft.group.parent.acronym)
-        self.assertEqual(t[9], six.text_type(draft.ad))
+        self.assertEqual(t[9], str(draft.ad))
         self.assertEqual(t[10], draft.intended_std_level.name)
         self.assertEqual(t[11], "")
         self.assertEqual(t[12], ".pdf,.txt")
diff --git a/ietf/iesg/views.py b/ietf/iesg/views.py
index 9d3a9bb4a..d03de500a 100644
--- a/ietf/iesg/views.py
+++ b/ietf/iesg/views.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2007-2019, All Rights Reserved
+# Copyright The IETF Trust 2007-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 #
 # Portion Copyright (C) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
@@ -41,7 +41,6 @@ import io
 import itertools
 import json
 import os
-import six
 import tarfile
 import time
 
@@ -317,9 +316,9 @@ def agenda_documents_txt(request):
         row = (
             d.computed_telechat_date.isoformat(),
             d.name,
-            six.text_type(d.intended_std_level),
+            str(d.intended_std_level),
             "1" if d.stream_id in ("ise", "irtf") else "0",
-            six.text_type(d.area_acronym()).lower(),
+            (d.area_acronym() or 'none').lower(),
             d.ad.plain_name() if d.ad else "None Assigned",
             d.rev,
             )
diff --git a/ietf/ipr/fields.py b/ietf/ipr/fields.py
index 4b9987967..6d11b1b3c 100644
--- a/ietf/ipr/fields.py
+++ b/ietf/ipr/fields.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2014-2019, All Rights Reserved
+# Copyright The IETF Trust 2014-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -70,7 +70,7 @@ class SearchableIprDisclosuresField(forms.CharField):
         # patterns may not have been fully constructed there yet
         self.widget.attrs["data-ajax-url"] = urlreverse('ietf.ipr.views.ajax_search')
 
-        return ",".join(six.text_type(e.pk) for e in value)
+        return ",".join(str(e.pk) for e in value)
 
     def clean(self, value):
         value = super(SearchableIprDisclosuresField, self).clean(value)
diff --git a/ietf/ipr/views.py b/ietf/ipr/views.py
index 81df9ab95..238e32973 100644
--- a/ietf/ipr/views.py
+++ b/ietf/ipr/views.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2007-2019, All Rights Reserved
+# Copyright The IETF Trust 2007-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -6,7 +6,6 @@ from __future__ import absolute_import, print_function, unicode_literals
 
 import datetime
 import itertools
-import six
 
 from django.conf import settings
 from django.contrib import messages
@@ -456,7 +455,7 @@ def by_draft_txt(request):
 
     lines = [ "# Machine-readable list of IPR disclosures by draft name" ]
     for name, iprs in docipr.items():
-        lines.append(name + "\t" + "\t".join(six.text_type(ipr_id) for ipr_id in sorted(iprs)))
+        lines.append(name + "\t" + "\t".join(str(ipr_id) for ipr_id in sorted(iprs)))
 
     return HttpResponse("\n".join(lines), content_type="text/plain; charset=%s"%settings.DEFAULT_CHARSET)
 
@@ -478,7 +477,7 @@ def by_draft_recursive_txt(request):
 
     lines = [ "# Machine-readable list of IPR disclosures by draft name" ]
     for name, iprs in docipr.items():
-        lines.append(name + "\t" + "\t".join(six.text_type(ipr_id) for ipr_id in sorted(iprs)))
+        lines.append(name + "\t" + "\t".join(str(ipr_id) for ipr_id in sorted(iprs)))
 
     return HttpResponse("\n".join(lines), content_type="text/plain; charset=%s"%settings.DEFAULT_CHARSET)
 
diff --git a/ietf/liaisons/fields.py b/ietf/liaisons/fields.py
index 6f21b7c74..1fe2afae0 100644
--- a/ietf/liaisons/fields.py
+++ b/ietf/liaisons/fields.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2014-2019, All Rights Reserved
+# Copyright The IETF Trust 2014-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -65,7 +65,7 @@ class SearchableLiaisonStatementsField(forms.CharField):
         # patterns may not have been fully constructed there yet
         self.widget.attrs["data-ajax-url"] = urlreverse("ietf.liaisons.views.ajax_select2_search_liaison_statements")
 
-        return ",".join(six.text_type(o.pk) for o in value)
+        return ",".join(str(o.pk) for o in value)
 
     def clean(self, value):
         value = super(SearchableLiaisonStatementsField, self).clean(value)
diff --git a/ietf/liaisons/forms.py b/ietf/liaisons/forms.py
index 8f409fb90..5bab1ba64 100644
--- a/ietf/liaisons/forms.py
+++ b/ietf/liaisons/forms.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2011-2019, All Rights Reserved
+# Copyright The IETF Trust 2011-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -206,7 +206,7 @@ class CustomModelMultipleChoiceField(forms.ModelMultipleChoiceField):
         if isinstance(value, QuerySet):
             return value
         if (hasattr(value, '__iter__') and
-                not isinstance(value, six.text_type) and
+                not isinstance(value, str) and
                 not hasattr(value, '_meta')):
             return [super(CustomModelMultipleChoiceField, self).prepare_value(v) for v in value]
         return super(CustomModelMultipleChoiceField, self).prepare_value(value)
@@ -454,7 +454,7 @@ class IncomingLiaisonForm(LiaisonModelForm):
             self.fields['from_contact'].initial = self.person.role_set.filter(group=queryset[0]).first().email.address
             self.fields['from_contact'].widget.attrs['readonly'] = True
         self.fields['from_groups'].queryset = queryset
-        self.fields['from_groups'].widget.submitter = six.text_type(self.person)
+        self.fields['from_groups'].widget.submitter = str(self.person)
 
         # if there's only one possibility make it the default
         if len(queryset) == 1:
diff --git a/ietf/meeting/models.py b/ietf/meeting/models.py
index 60c4142fc..f802b7539 100644
--- a/ietf/meeting/models.py
+++ b/ietf/meeting/models.py
@@ -1,17 +1,18 @@
-# Copyright The IETF Trust 2007-2019, All Rights Reserved
+# Copyright The IETF Trust 2007-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 from __future__ import absolute_import, print_function, unicode_literals
 
 # old meeting models can be found in ../proceedings/models.py
 
-import pytz
 import datetime
 import io
-from six.moves.urllib.parse import urljoin
 import os
+import pytz
 import re
 import string
 
+from urllib.parse import urljoin
+
 import debug                            # pyflakes:ignore
 
 from django.core.validators import MinValueValidator
diff --git a/ietf/meeting/tests_views.py b/ietf/meeting/tests_views.py
index 2dd0f57d9..00fc826ba 100644
--- a/ietf/meeting/tests_views.py
+++ b/ietf/meeting/tests_views.py
@@ -436,7 +436,7 @@ class MeetingTests(TestCase):
         response = self.client.get(url)
         self.assertContains(response, 'test acknowledgements')
 
-    @patch('six.moves.urllib.request.urlopen')
+    @patch('urllib.request.urlopen')
     def test_proceedings_attendees(self, mock_urlopen):
         mock_urlopen.return_value = six.BytesIO(b'[{"LastName":"Smith","FirstName":"John","Company":"ABC","Country":"US"}]')
         make_meeting_test_data()
@@ -448,7 +448,7 @@ class MeetingTests(TestCase):
         q = PyQuery(response.content)
         self.assertEqual(1,len(q("#id_attendees tbody tr")))
 
-    @patch('six.moves.urllib.request.urlopen')
+    @patch('urllib.request.urlopen')
     def test_proceedings_overview(self, mock_urlopen):
         '''Test proceedings IETF Overview page.
         Note: old meetings aren't supported so need to add a new meeting then test.
@@ -2041,7 +2041,7 @@ class IphoneAppJsonTests(TestCase):
         self.assertEqual(r.status_code,200)
 
 class FinalizeProceedingsTests(TestCase):
-    @patch('six.moves.urllib.request.urlopen')
+    @patch('urllib.request.urlopen')
     def test_finalize_proceedings(self, mock_urlopen):
         mock_urlopen.return_value = BytesIO(b'[{"LastName":"Smith","FirstName":"John","Company":"ABC","Country":"US"}]')
         make_meeting_test_data()
@@ -2103,7 +2103,7 @@ class MaterialsTests(TestCase):
         r = self.client.get(url)
         self.assertEqual(r.status_code, 200)
         q = PyQuery(r.content)
-        self.assertIn('Upload', six.text_type(q("title")))
+        self.assertIn('Upload', str(q("title")))
         self.assertFalse(session.sessionpresentation_set.exists())
         test_file = StringIO('%PDF-1.4\n%âãÏÓ\nthis is some text for a test')
         test_file.name = "not_really.pdf"
@@ -2114,7 +2114,7 @@ class MaterialsTests(TestCase):
         r = self.client.get(url)
         self.assertEqual(r.status_code, 200)
         q = PyQuery(r.content)
-        self.assertIn('Revise', six.text_type(q("title")))
+        self.assertIn('Revise', str(q("title")))
         test_file = StringIO('%PDF-1.4\n%âãÏÓ\nthis is some different text for a test')
         test_file.name = "also_not_really.pdf"
         r = self.client.post(url,dict(file=test_file))
@@ -2138,7 +2138,7 @@ class MaterialsTests(TestCase):
         r = self.client.get(url)
         self.assertEqual(r.status_code, 200)
         q = PyQuery(r.content)
-        self.assertIn('Upload', six.text_type(q("title")))
+        self.assertIn('Upload', str(q("title")))
         self.assertFalse(session.sessionpresentation_set.exists())
         test_file = StringIO('%PDF-1.4\n%âãÏÓ\nthis is some text for a test')
         test_file.name = "not_really.pdf"
@@ -2156,7 +2156,7 @@ class MaterialsTests(TestCase):
         r = self.client.get(url)
         self.assertEqual(r.status_code, 200)
         q = PyQuery(r.content)
-        self.assertIn('Upload', six.text_type(q("title")))
+        self.assertIn('Upload', str(q("title")))
         
 
     def test_upload_minutes_agenda(self):
@@ -2171,7 +2171,7 @@ class MaterialsTests(TestCase):
             r = self.client.get(url)
             self.assertEqual(r.status_code, 200)
             q = PyQuery(r.content)
-            self.assertIn('Upload', six.text_type(q("Title")))
+            self.assertIn('Upload', str(q("Title")))
             self.assertFalse(session.sessionpresentation_set.exists())
             self.assertFalse(q('form input[type="checkbox"]'))
     
@@ -2226,7 +2226,7 @@ class MaterialsTests(TestCase):
             r = self.client.get(url)
             self.assertEqual(r.status_code, 200)
             q = PyQuery(r.content)
-            self.assertIn('Revise', six.text_type(q("Title")))
+            self.assertIn('Revise', str(q("Title")))
             test_file = BytesIO(b'this is some different text for a test')
             test_file.name = "also_some.txt"
             r = self.client.post(url,dict(file=test_file,apply_to_all=True))
@@ -2260,7 +2260,7 @@ class MaterialsTests(TestCase):
             r = self.client.get(url)
             self.assertEqual(r.status_code, 200)
             q = PyQuery(r.content)
-            self.assertIn('Upload', six.text_type(q("Title")))
+            self.assertIn('Upload', str(q("Title")))
             self.assertFalse(session.sessionpresentation_set.exists())
             self.assertFalse(q('form input[type="checkbox"]'))
 
@@ -2281,7 +2281,7 @@ class MaterialsTests(TestCase):
             r = self.client.get(url)
             self.assertEqual(r.status_code, 200)
             q = PyQuery(r.content)
-            self.assertIn('Upload', six.text_type(q("title")))
+            self.assertIn('Upload', str(q("title")))
             self.assertFalse(session.sessionpresentation_set.filter(document__type_id=doctype))
             test_file = BytesIO(b'this is some text for a test')
             test_file.name = "not_really.txt"
@@ -2304,7 +2304,7 @@ class MaterialsTests(TestCase):
         r = self.client.get(url)
         self.assertEqual(r.status_code, 200)
         q = PyQuery(r.content)
-        self.assertIn('Upload', six.text_type(q("title")))
+        self.assertIn('Upload', str(q("title")))
         self.assertFalse(session1.sessionpresentation_set.filter(document__type_id='slides'))
         test_file = BytesIO(b'this is not really a slide')
         test_file.name = 'not_really.txt'
@@ -2332,7 +2332,7 @@ class MaterialsTests(TestCase):
         r = self.client.get(url)
         self.assertTrue(r.status_code, 200)
         q = PyQuery(r.content)
-        self.assertIn('Revise', six.text_type(q("title")))
+        self.assertIn('Revise', str(q("title")))
         test_file = BytesIO(b'new content for the second slide deck')
         test_file.name = 'doesnotmatter.txt'
         r = self.client.post(url,dict(file=test_file,title='rename the presentation',apply_to_all=False))
diff --git a/ietf/meeting/utils.py b/ietf/meeting/utils.py
index e7b696274..3daee71a9 100644
--- a/ietf/meeting/utils.py
+++ b/ietf/meeting/utils.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2016-2019, All Rights Reserved
+# Copyright The IETF Trust 2016-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -6,7 +6,7 @@ from __future__ import absolute_import, print_function, unicode_literals
 
 import datetime
 import json
-import six.moves.urllib.request
+import urllib.request
 
 from six.moves.urllib.error import HTTPError
 from django.conf import settings
@@ -115,7 +115,7 @@ def create_proceedings_templates(meeting):
     # Get meeting attendees from registration system
     url = settings.STATS_REGISTRATION_ATTENDEES_JSON_URL.format(number=meeting.number)
     try:
-        attendees = json.load(six.moves.urllib.request.urlopen(url))
+        attendees = json.load(urllib.request.urlopen(url))
     except (ValueError, HTTPError):
         attendees = []
 
diff --git a/ietf/meeting/views.py b/ietf/meeting/views.py
index 89e61b12b..a390dccfc 100644
--- a/ietf/meeting/views.py
+++ b/ietf/meeting/views.py
@@ -13,14 +13,13 @@ import json
 import os
 import pytz
 import re
-import six
 import tarfile
 import markdown2
 
 
 from calendar import timegm
 from collections import OrderedDict, Counter, deque
-from six.moves.urllib.parse import unquote
+from urllib.parse import unquote
 from tempfile import mkstemp
 from wsgiref.handlers import format_date_time
 
@@ -556,7 +555,7 @@ def agenda_csv(schedule, filtered_assignments):
     headings = ["Date", "Start", "End", "Session", "Room", "Area", "Acronym", "Type", "Description", "Session ID", "Agenda", "Slides"]
 
     def write_row(row):
-        encoded_row = [v.encode('utf-8') if isinstance(v, six.text_type) else v for v in row]
+        encoded_row = [v.encode('utf-8') if isinstance(v, str) else v for v in row]
 
         while len(encoded_row) < len(headings):
             encoded_row.append(None) # produce empty entries at the end as necessary
diff --git a/ietf/nomcom/forms.py b/ietf/nomcom/forms.py
index fe8942bbc..5f41652a2 100644
--- a/ietf/nomcom/forms.py
+++ b/ietf/nomcom/forms.py
@@ -42,12 +42,12 @@ class PositionNomineeField(forms.ChoiceField):
         results = []
         for position in positions:
             accepted_nominees = [np.nominee for np in NomineePosition.objects.filter(position=position,state='accepted').exclude(nominee__duplicated__isnull=False)]
-            nominees = [('%s_%s' % (position.id, i.id), six.text_type(i)) for i in accepted_nominees]
+            nominees = [('%s_%s' % (position.id, i.id), str(i)) for i in accepted_nominees]
             if nominees:
                 results.append((position.name+" (Accepted)", nominees))
         for position in positions:
             other_nominees = [np.nominee for np in NomineePosition.objects.filter(position=position).exclude(state='accepted').exclude(nominee__duplicated__isnull=False)]
-            nominees = [('%s_%s' % (position.id, i.id), six.text_type(i)) for i in other_nominees]
+            nominees = [('%s_%s' % (position.id, i.id), str(i)) for i in other_nominees]
             if nominees:
                 results.append((position.name+" (Declined or Pending)", nominees))
         kwargs['choices'] = results
diff --git a/ietf/person/fields.py b/ietf/person/fields.py
index 077b6c4ca..77246ac29 100644
--- a/ietf/person/fields.py
+++ b/ietf/person/fields.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2012-2019, All Rights Reserved
+# Copyright The IETF Trust 2012-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -179,7 +179,7 @@ class PersonEmailChoiceField(forms.ModelChoiceField):
 
     def label_from_instance(self, email):
         if self.label_with == "person":
-            return six.text_type(email.person)
+            return str(email.person)
         elif self.label_with == "email":
             return email.address
         else:
diff --git a/ietf/person/models.py b/ietf/person/models.py
index 92cf46f64..8e99c5cce 100644
--- a/ietf/person/models.py
+++ b/ietf/person/models.py
@@ -88,9 +88,8 @@ class Person(models.Model):
     def plain_ascii(self):
         if not hasattr(self, '_cached_plain_ascii'):
             if self.ascii:
-                if isinstance(self.ascii, six.binary_type):
-                    uname = six.text_type(self.ascii)
-                    ascii = unidecode_name(uname)
+                if isinstance(self.ascii, bytes):
+                    ascii = unidecode_name(self.ascii.decode('utf-8'))
                 else:
                     ascii = unidecode_name(self.ascii)
             else:
diff --git a/ietf/person/tests.py b/ietf/person/tests.py
index 29215be95..fd3129e42 100644
--- a/ietf/person/tests.py
+++ b/ietf/person/tests.py
@@ -5,7 +5,6 @@
 from __future__ import absolute_import, print_function, unicode_literals
 
 import datetime
-import six
 
 from pyquery import PyQuery
 from io import StringIO
@@ -94,7 +93,7 @@ class PersonTests(TestCase):
         empty_outbox()
         p = PersonFactory(name="Föö Bär")
         PersonFactory(name=p.name)
-        self.assertTrue("possible duplicate" in six.text_type(outbox[0]["Subject"]).lower())
+        self.assertTrue("possible duplicate" in str(outbox[0]["Subject"]).lower())
 
     def test_merge(self):
         url = urlreverse("ietf.person.views.merge")
diff --git a/ietf/review/mailarch.py b/ietf/review/mailarch.py
index 3ad1dbd30..b56ec3355 100644
--- a/ietf/review/mailarch.py
+++ b/ietf/review/mailarch.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2016-2019, All Rights Reserved
+# Copyright The IETF Trust 2016-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -18,7 +18,7 @@ import base64
 import email.utils
 
 from six.moves.urllib.parse import urlencode
-from six.moves.urllib.request import urlopen
+from urllib.request import urlopen
 
 import debug                            # pyflakes:ignore
 
diff --git a/ietf/review/policies.py b/ietf/review/policies.py
index 8946bd5c6..ffd3582e6 100644
--- a/ietf/review/policies.py
+++ b/ietf/review/policies.py
@@ -1,10 +1,9 @@
-# Copyright The IETF Trust 2019, All Rights Reserved
+# Copyright The IETF Trust 2019-2020, All Rights Reserved
 
 from __future__ import absolute_import, print_function, unicode_literals
 
 import re
 
-import six
 from django.db.models.aggregates import Max
 
 from ietf.doc.models import DocumentAuthor, DocAlias
@@ -289,7 +288,7 @@ class AssignmentOrderResolver:
         if stats:
             explanations.append(", ".join(stats))
 
-        label = six.text_type(email.person)
+        label = str(email.person)
         if explanations:
             label = "{}: {}".format(label, "; ".join(explanations))
         return {
diff --git a/ietf/secr/sreq/tests.py b/ietf/secr/sreq/tests.py
index 24d9009a2..c556a02b8 100644
--- a/ietf/secr/sreq/tests.py
+++ b/ietf/secr/sreq/tests.py
@@ -5,7 +5,6 @@
 from __future__ import absolute_import, print_function, unicode_literals
 
 import datetime
-import six
 
 from django.urls import reverse
 
@@ -227,14 +226,14 @@ class SubmitRequestCase(TestCase):
         r = self.client.post(url,post_data)
         self.assertEqual(r.status_code, 200)
         q = PyQuery(r.content)
-        self.assertTrue('Confirm' in six.text_type(q("title")))
+        self.assertTrue('Confirm' in str(q("title")))
         # confirm
         post_data['submit'] = 'Submit'
         r = self.client.post(confirm_url,post_data)
         self.assertRedirects(r, reverse('ietf.secr.sreq.views.main'))
         self.assertEqual(len(outbox),len_before+1)
         notification = outbox[-1]
-        notification_payload = six.text_type(notification.get_payload(decode=True),"utf-8","replace")
+        notification_payload = notification.get_payload(decode=True).decode(encoding="utf-8", errors="replace")
         session = Session.objects.get(meeting=meeting,group=group)
         self.assertEqual(session.resources.count(),1)
         self.assertEqual(session.people_constraints.count(),1)
diff --git a/ietf/settings.py b/ietf/settings.py
index 88c7ebaed..691707e19 100644
--- a/ietf/settings.py
+++ b/ietf/settings.py
@@ -9,12 +9,10 @@ from __future__ import absolute_import, print_function, unicode_literals
 # http://code.djangoproject.com/wiki/SplitSettings
 
 import os
-import six
 import sys
 import datetime
 import warnings
-if six.PY3:
-    from typing import Any, Dict, List, Tuple # pyflakes:ignore
+from typing import Any, Dict, List, Tuple # pyflakes:ignore
 
 warnings.simplefilter("always", DeprecationWarning)
 warnings.filterwarnings("ignore", message="Report.file_reporters will no longer be available in Coverage.py 4.2", module="coverage.report")
diff --git a/ietf/stats/backfill_data.py b/ietf/stats/backfill_data.py
index 41fca2049..91f5c50d9 100755
--- a/ietf/stats/backfill_data.py
+++ b/ietf/stats/backfill_data.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-# Copyright The IETF Trust 2017-2019, All Rights Reserved
+# Copyright The IETF Trust 2017-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 from __future__ import absolute_import, print_function, unicode_literals
@@ -133,10 +133,10 @@ for doc in docs_qs.prefetch_related("docalias", "formal_languages", "documentaut
             # it's an extra author - skip those extra authors
             seen = set()                # type: Set[Optional[str]]
             for full, _, _, _, _, email, country, company in d.get_author_list():
-                assert full is None or    isinstance(full,    six.text_type)
-                assert email is None or   isinstance(email,   six.text_type)
-                assert country is None or isinstance(country, six.text_type)
-                assert                    isinstance(company, six.text_type)
+                assert full is None or    isinstance(full,    str)
+                assert email is None or   isinstance(email,   str)
+                assert country is None or isinstance(country, str)
+                assert                    isinstance(company, str)
                 #full, email, country, company = [ unicode(s) for s in [full, email, country, company, ] ]
                 if email in seen:
                     continue
diff --git a/ietf/submit/forms.py b/ietf/submit/forms.py
index 8d83eb9fa..205682b09 100644
--- a/ietf/submit/forms.py
+++ b/ietf/submit/forms.py
@@ -202,11 +202,11 @@ class SubmissionBaseUploadForm(forms.Form):
                         self.revision = None
                         self.filename = draftname
                     self.title = self.xmlroot.findtext('front/title').strip()
-                    if type(self.title) is six.text_type:
+                    if type(self.title) is str:
                         self.title = unidecode(self.title)
                     self.title = normalize_text(self.title)
                     self.abstract = (self.xmlroot.findtext('front/abstract') or '').strip()
-                    if type(self.abstract) is six.text_type:
+                    if type(self.abstract) is str:
                         self.abstract = unidecode(self.abstract)
                     author_info = self.xmlroot.findall('front/author')
                     for author in author_info:
diff --git a/ietf/submit/tests.py b/ietf/submit/tests.py
index 7cc5d34d5..4af95af10 100644
--- a/ietf/submit/tests.py
+++ b/ietf/submit/tests.py
@@ -421,7 +421,7 @@ class SubmitTests(TestCase):
         self.assertTrue("unknown-email-" not in confirm_email["To"])
         if change_authors:
             # Since authors changed, ensure chairs are copied (and that the message says why)
-            self.assertTrue("chairs have been copied" in six.text_type(confirm_email))
+            self.assertTrue("chairs have been copied" in str(confirm_email))
             if group_type in ['wg','rg','ag']:
                 self.assertTrue("mars-chairs@" in confirm_email["To"].lower())
             elif group_type == 'area':
@@ -431,7 +431,7 @@ class SubmitTests(TestCase):
             if stream_type=='ise':
                self.assertTrue("rfc-ise@" in confirm_email["To"].lower())
         else:
-            self.assertNotIn("chairs have been copied", six.text_type(confirm_email))
+            self.assertNotIn("chairs have been copied", str(confirm_email))
             self.assertNotIn("mars-chairs@", confirm_email["To"].lower())
 
         confirmation_url = self.extract_confirmation_url(confirm_email)
@@ -570,7 +570,7 @@ class SubmitTests(TestCase):
         # both submitter and author get email
         self.assertTrue(author.email().address.lower() in confirm_email["To"])
         self.assertTrue("submitter@example.com" in confirm_email["To"])
-        self.assertFalse("chairs have been copied" in six.text_type(confirm_email))
+        self.assertFalse("chairs have been copied" in str(confirm_email))
 
         confirmation_url = self.extract_confirmation_url(outbox[-1])
 
diff --git a/ietf/submit/utils.py b/ietf/submit/utils.py
index 0b0b74bf0..6083539c0 100644
--- a/ietf/submit/utils.py
+++ b/ietf/submit/utils.py
@@ -493,7 +493,7 @@ def ensure_person_email_info_exists(name, email, docname):
         person = Person()
         person.name = name
         person.name_from_draft = name
-        log.assertion('isinstance(person.name, six.text_type)')
+        log.assertion('isinstance(person.name, str)')
         person.ascii = unidecode_name(person.name)
         person.save()
     else:
@@ -682,7 +682,7 @@ def get_draft_meta(form, saved_files):
                 if s is None:
                     return ""
 
-                if isinstance(s, six.text_type):
+                if isinstance(s, str):
                     return s
                 else:
                     try:
diff --git a/ietf/sync/iana.py b/ietf/sync/iana.py
index 186272674..e80772cec 100644
--- a/ietf/sync/iana.py
+++ b/ietf/sync/iana.py
@@ -10,7 +10,7 @@ import email
 import json
 import re
 
-from six.moves.urllib.request import Request, urlopen
+from urllib.request import Request, urlopen
 
 from django.conf import settings
 from django.utils.encoding import smart_bytes, force_str
diff --git a/ietf/sync/rfceditor.py b/ietf/sync/rfceditor.py
index 645e3d78c..ce74a5b7b 100644
--- a/ietf/sync/rfceditor.py
+++ b/ietf/sync/rfceditor.py
@@ -7,9 +7,8 @@ from __future__ import absolute_import, print_function, unicode_literals
 import base64
 import datetime
 import re
-import six
 
-from six.moves.urllib.request import Request, urlopen
+from urllib.request import Request, urlopen
 from six.moves.urllib.parse import urlencode
 from xml.dom import pulldom, Node
 
@@ -560,6 +559,6 @@ def post_approved_draft(url, name):
         log(msg)
         if settings.SERVER_MODE == 'test':
             debug.say(msg)
-        error = six.text_type(e)
+        error = str(e)
 
     return text, error
diff --git a/ietf/utils/admin.py b/ietf/utils/admin.py
index ec141b78c..cf37dcff9 100644
--- a/ietf/utils/admin.py
+++ b/ietf/utils/admin.py
@@ -1,10 +1,9 @@
-# Copyright The IETF Trust 2011-2019, All Rights Reserved
+# Copyright The IETF Trust 2011-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
 from __future__ import absolute_import, print_function, unicode_literals
 
-import six
 
 from django.contrib import admin
 from django.utils.encoding import force_text
@@ -21,7 +20,7 @@ def name(obj):
             name = force_text(obj.name)
         if name:
             return name
-    return six.text_type(obj)
+    return str(obj)
     
 def admin_link(field, label=None, ordering="", display=name, suffix=""):
     if not label:
diff --git a/ietf/utils/draft.py b/ietf/utils/draft.py
index 368d545eb..d19e671b1 100755
--- a/ietf/utils/draft.py
+++ b/ietf/utils/draft.py
@@ -1,5 +1,5 @@
 #!/usr/bin/python
-# Copyright The IETF Trust 2009-2019, All Rights Reserved
+# Copyright The IETF Trust 2009-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 # -*- python -*-
 
@@ -136,7 +136,7 @@ def acronym_match(s, l):
 class Draft():
 
     def __init__(self, text, source, name_from_source=False):
-        assert isinstance(text, six.text_type)
+        assert isinstance(text, str)
         self.source = source
         self.rawtext = text
         self.name_from_source = name_from_source
diff --git a/ietf/utils/mail.py b/ietf/utils/mail.py
index 8e997c306..e535e6921 100644
--- a/ietf/utils/mail.py
+++ b/ietf/utils/mail.py
@@ -189,7 +189,7 @@ def send_mail(request, to, frm, subject, template, context, *args, **kwargs):
     return send_mail_text(request, to, frm, subject, txt, *args, **kwargs)
 
 def encode_message(txt):
-    assert isinstance(txt, six.text_type)
+    assert isinstance(txt, str)
     return MIMEText(txt.encode('utf-8'), 'plain', 'UTF-8')
 
 def send_mail_text(request, to, frm, subject, txt, cc=None, extra=None, toUser=False, bcc=None, copy=True, save=True):
diff --git a/ietf/utils/markup_txt.py b/ietf/utils/markup_txt.py
index 6e680fd81..b45f7b75b 100644
--- a/ietf/utils/markup_txt.py
+++ b/ietf/utils/markup_txt.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2009-2019, All Rights Reserved
+# Copyright The IETF Trust 2009-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 #
 # Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
@@ -45,7 +45,7 @@ from ietf.utils import log
 from ietf.utils.text import wordwrap
 
 def markup(content, width=None):
-    log.assertion('isinstance(content, six.text_type)')
+    log.assertion('isinstance(content, str)')
     # normalize line endings to LF only
     content = content.replace("\r\n", "\n")
     content = content.replace("\r", "\n")
diff --git a/ietf/utils/patch.py b/ietf/utils/patch.py
index 0c1952f3f..379f2c760 100644
--- a/ietf/utils/patch.py
+++ b/ietf/utils/patch.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2020, All Rights Reserved
+# Some parts Copyright The IETF Trust 2020, All Rights Reserved
 #!/usr/bin/env python
 """
     Patch utility to apply unified diffs
diff --git a/ietf/utils/test_utils.py b/ietf/utils/test_utils.py
index fc5df7ef6..f6ba32c3f 100644
--- a/ietf/utils/test_utils.py
+++ b/ietf/utils/test_utils.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2009-2019, All Rights Reserved
+# Copyright The IETF Trust 2009-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 #
 # Portion Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
@@ -40,7 +40,6 @@ import os
 import re
 import email
 import html5lib
-import six
 import sys
 
 from six.moves.urllib.parse import unquote
@@ -175,7 +174,7 @@ class TestCase(django.test.TestCase):
         if subject:
             mlist = [ m for m in mlist if subject in m["Subject"] ]
         if text:
-            assert isinstance(text, six.text_type)
+            assert isinstance(text, str)
             mlist = [ m for m in mlist if text in get_payload(m) ]
         if count and len(mlist) != count:
             sys.stderr.write("Wrong count in assertMailboxContains().  The complete mailbox contains %s emails:\n\n" % len(mailbox))
diff --git a/ietf/utils/text.py b/ietf/utils/text.py
index 611ff7e86..ee01fbbe0 100644
--- a/ietf/utils/text.py
+++ b/ietf/utils/text.py
@@ -1,4 +1,4 @@
-# Copyright The IETF Trust 2016-2019, All Rights Reserved
+# Copyright The IETF Trust 2016-2020, All Rights Reserved
 # -*- coding: utf-8 -*-
 
 
@@ -154,7 +154,7 @@ def decode(raw):
 def text_to_dict(t):
     "Converts text with RFC2822-formatted header fields into a dictionary-like object."
     # ensure we're handed a unicode parameter
-    assert isinstance(t, six.text_type)
+    assert isinstance(t, str)
     d = {}
     # Return {} for malformed input
     if not len(t.lstrip()) == len(t):
diff --git a/requirements.txt b/requirements.txt
index c03399a10..b288e3313 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,6 +20,7 @@ django-markup>=1.1
 django-password-strength>=1.2.1
 django-referrer-policy>=1.0
 django-simple-history>=2.3.0
+django-stubs==1.3.0
 django-tastypie>=0.13.2
 django-webtest>=1.9.7
 django-widget-tweaks>=1.3
@@ -37,6 +38,7 @@ jwcrypto>=0.4.0			# for signed notifications
 #lxml>=3.4.0                    # from PyQuery; 
 markdown2>=2.3.8
 mock>=2.0.0
+mypy==0.750			# Version requirements determined by django-stubs.
 mysqlclient>=1.3.13
 oauth2client>=4.0.0		# required by google-api-python-client, but not always pulled in
 pathlib>=1.0
@@ -60,8 +62,7 @@ six>=1.9.0
 sqlparse>=0.2.2
 tblib>=1.3.0
 tqdm>=3.7.0
-Trac>=1.0.10,<1.2
-typing>=3.7.4.1
+#Trac>=1.0.10,<1.2
 Unidecode>=0.4.18
 #wsgiref>=0.1.2
 xml2rfc>=2.35.0
diff --git a/requirements3.txt b/requirements3.txt
deleted file mode 100644
index 15e1d796d..000000000
--- a/requirements3.txt
+++ /dev/null
@@ -1,71 +0,0 @@
-# -*- conf-mode -*-
-setuptools>=18.5			# Require this first, to prevent later errors
-#
-argon2-cffi>=16.1.0		# For the Argon2 password hasher option
-beautifulsoup4>=4.5.0
-bibtexparser>=0.6.2,<1.0	# Version 1.0 doesn't work under python 2.7.  1.0.1 doesn't recognize month names or abbreviations.
-bleach>=2.0.0,!=3.0.0,!=3.0.1,!=3.0.2
-coverage>=4.0.1,!=4.0.2,<5.0
-#cssselect>=0.6.1               # for PyQuery
-decorator>=4.0.4
-defusedxml>=0.4.1		# for TastyPie when ussing xml; not a declared dependency
-Django>=1.11,!=1.11.18,<1.12	# 1.11.18 has problems exporting BinaryField from django.db.models
-django-bcrypt>=0.9.2		# for the BCrypt password hasher option.  Remove when all bcrypt upgraded to argon2
-django-bootstrap3>=8.2.1,<9.0.0
-django-csp>=3.5
-django-cors-headers>=2.4.0
-django-form-utils>=1.0.3
-django-formtools>=1.0		# instead of django.contrib.formtools in 1.8
-django-markup>=1.1
-django-password-strength>=1.2.1
-django-referrer-policy>=1.0
-django-simple-history>=2.3.0
-django-stubs==1.3.0
-django-tastypie>=0.13.2
-django-webtest>=1.9.7
-django-widget-tweaks>=1.3
-docutils>=0.12,!=0.15
-factory-boy>=2.9.0
-google-api-python-client
-Faker>=0.8.8,!=0.8.9,!=0.8.10		# from factory-boy # Faker 0.8.9,0.8.10 sometimes return string names instead of unicode.
-hashids>=1.1.0
-html2text>=2019.8.11
-html5lib>=1.0.1
-httplib2>=0.10.3
-# jsonfield 3.x and higher requires Django 2.2 or higher
-jsonfield>=1.0.3,<3.0		# for SubmissionCheck.  This is https://github.com/bradjasper/django-jsonfield/.
-jwcrypto>=0.4.0			# for signed notifications
-#lxml>=3.4.0                    # from PyQuery; 
-markdown2>=2.3.8
-mock>=2.0.0
-mypy==0.750			# Version requirements determined by django-stubs.
-mysqlclient>=1.3.13
-oauth2client>=4.0.0		# required by google-api-python-client, but not always pulled in
-pathlib>=1.0
-pathlib2>=2.3.0
-Pillow>=3.0
-#pip==9.0.1			# Earlier pip has issues, 9.0.2 and 9.0.3, 10.0.0b1 leaves dross when down- and up-grading packages
-pyang>=1.7.2
-pyflakes>=0.9.2
-pyopenssl>=17.5.0		# Used by urllib3.contrib, which is used by PyQuery but not marked as a dependency
-pyquery>=1.2.13,!=1.2.14	# Pyqyery 1.2.14 fails on some selectors or stacked selectors
-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.*
-rfc2html>=2.0.1
-selenium>=2.42,<3.8.1
-six>=1.9.0
-sqlparse>=0.2.2
-tblib>=1.3.0
-tqdm>=3.7.0
-#Trac>=1.0.10,<1.2
-Unidecode>=0.4.18
-#wsgiref>=0.1.2
-xml2rfc>=2.9.3,!=2.6.0
-xym>=0.4.4,!=0.4.7,<1.0
-#zxcvbn-python>=4.4.14		# Not needed until we do back-end password entropy validation
-