From 9e9d00e5afdef54b1192d408f83e233ce32523b7 Mon Sep 17 00:00:00 2001
From: Blaine Jester <blainesworld@gmail.com>
Date: Mon, 11 Sep 2023 08:26:54 -0700
Subject: [PATCH 1/5] Update github action workflows for py2.7 deprecation

---
 .github/workflows/python-publish.yml |   4 +-
 .github/workflows/python2-lint.yml   |   8 +-
 .github/workflows/tox.yml            | 112 ++++++++++++++++++++-------
 .gitignore                           |   3 +-
 4 files changed, 91 insertions(+), 36 deletions(-)

diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index 6163b354..5ebde347 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -16,9 +16,9 @@ jobs:
   deploy:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
         python-version: 3.9
     - name: Install dependencies
diff --git a/.github/workflows/python2-lint.yml b/.github/workflows/python2-lint.yml
index 668305c0..81ae042b 100644
--- a/.github/workflows/python2-lint.yml
+++ b/.github/workflows/python2-lint.yml
@@ -19,13 +19,11 @@ jobs:
         name: Python 2 syntax checking
         needs: pre_job
         if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-20.04
+        container:
+            image: python:2.7.18-buster
         steps:
             - uses: actions/checkout@v2
-            - name: Set up Python 2.7
-              uses: actions/setup-python@v2
-              with:
-                  python-version: 2.7
             - name: Install dependencies
               run: |
                   python -m pip install --upgrade pip
diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index 80969c8b..87414f62 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -18,67 +18,120 @@ jobs:
     unit_test:
         name: Python unit tests
         needs: pre_job
-        if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
         runs-on: ubuntu-18.04
         strategy:
             max-parallel: 5
             matrix:
-                python-version: [2.7, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9]
-
+                python-version: [3.4, 3.5, 3.6, 3.7, 3.8, 3.9]
         steps:
             - uses: actions/checkout@v2
             - name: Set up Python ${{ matrix.python-version }}
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               uses: actions/setup-python@v2
               with:
                   python-version: ${{ matrix.python-version }}
             - name: Install tox
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               run: |
                   python -m pip install --upgrade pip
                   pip install tox
             - name: tox env cache
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               uses: actions/cache@v2
               with:
                   path: ${{ github.workspace }}/.tox/py${{ matrix.python-version }}
                   key: ${{ runner.os }}-tox-py${{ matrix.python-version }}-${{ hashFiles('setup.py', 'requirements/*.txt') }}
             - name: Test with tox
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               run: tox -e py${{ matrix.python-version }}
+    unit_test27:
+        name: Python unit tests (2.7)
+        needs: pre_job
+        runs-on: ubuntu-20.04
+        container:
+            image: python:2.7.18-buster
+        steps:
+            - uses: actions/checkout@v2
+            - name: Install tox
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              run: |
+                python -m pip install --upgrade pip
+                pip install tox
+            - name: tox env cache
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              uses: actions/cache@v2
+              with:
+                  path: ${{ github.workspace }}/.tox/py2.7
+                  key: ${{ runner.os }}-tox-py2.7-${{ hashFiles('setup.py', 'requirements/*.txt') }}
+            - name: Test with tox
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              run: tox -e py2.7
     cryptography:
         name: Python unit tests + cryptography
         needs: pre_job
-        if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
         runs-on: ubuntu-18.04
         strategy:
             max-parallel: 5
             matrix:
                 # only crypto 2.3 seems to work
-                python-version: [ 2.7, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9 ]
+                python-version: [ 3.4, 3.5, 3.6, 3.7, 3.8, 3.9 ]
                 crypto-version: [ 2.3 ]
-
         steps:
-            -   uses: actions/checkout@v2
-            -   name: Set up Python ${{ matrix.python-version }}
-                uses: actions/setup-python@v2
-                with:
-                    python-version: ${{ matrix.python-version }}
-            -   name: Install system dependencies
-                run: |
-                    sudo apt-get -y -qq update
-                    sudo apt-get install -y openssl libssl-dev
-            -   name: Install tox
-                run: |
-                    python -m pip install --upgrade pip
-                    pip install tox
-            -   name: tox env cache
-                uses: actions/cache@v2
-                with:
-                    path: ${{ github.workspace }}/.tox/py${{ matrix.python-version }}
-                    key: ${{ runner.os }}-tox-py${{ matrix.python-version }}-crypto${{ matrix.crypto-version }}-${{ hashFiles('setup.py', 'requirements/*.txt') }}
-            -   name: Test with tox
-                run: tox -e py${{ matrix.python-version }}-cryptography${{ matrix.crypto-version }}
+            - uses: actions/checkout@v2
+            - name: Set up Python ${{ matrix.python-version }}
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              uses: actions/setup-python@v2
+              with:
+                  python-version: ${{ matrix.python-version }}
+            - name: Install system dependencies
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              run: |
+                sudo apt-get -y -qq update
+                sudo apt-get install -y openssl libssl-dev
+            - name: Install tox
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              run: |
+                python -m pip install --upgrade pip
+                pip install tox
+            - name: tox env cache
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              uses: actions/cache@v2
+              with:
+                  path: ${{ github.workspace }}/.tox/py${{ matrix.python-version }}
+                  key: ${{ runner.os }}-tox-py${{ matrix.python-version }}-crypto${{ matrix.crypto-version }}-${{ hashFiles('setup.py', 'requirements/*.txt') }}
+            - name: Test with tox
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              run: tox -e py${{ matrix.python-version }}-cryptography${{ matrix.crypto-version }}
+    cryptography27:
+        name: Python unit tests (2.7) + cryptography
+        needs: pre_job
+        runs-on: ubuntu-20.04
+        container:
+            image: python:2.7.18-buster
+        steps:
+            - uses: actions/checkout@v2
+            - name: Install system dependencies
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              run: |
+                apt-get -y -qq update
+                apt-get install -y openssl libssl-dev
+            - name: Install tox
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              run: |
+                python -m pip install --upgrade pip
+                pip install tox
+            - name: tox env cache
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              uses: actions/cache@v2
+              with:
+                  path: ${{ github.workspace }}/.tox/py2.7
+                  key: ${{ runner.os }}-tox-py2.7-crypto3.3-${{ hashFiles('setup.py', 'requirements/*.txt') }}
+            - name: Test with tox
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+              run: tox -e py2.7-cryptography2.3
     postgres:
         name: Python postgres unit tests
         needs: pre_job
-        if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
         runs-on: ubuntu-18.04
         services:
             # Label used to access the service container
@@ -102,19 +155,23 @@ jobs:
         steps:
             - uses: actions/checkout@v2
             - name: Set up Python 3.5 for Postgres
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               uses: actions/setup-python@v2
               with:
                   python-version: 3.5
             - name: Install tox
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               run: |
                   python -m pip install --upgrade pip
                   pip install tox
             - name: tox env cache
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               uses: actions/cache@v2
               with:
                   path: ${{ github.workspace }}/.tox/py${{ matrix.python-version }}
                   key: ${{ runner.os }}-tox-py${{ matrix.python-version }}-${{ hashFiles('setup.py', 'requirements/*.txt') }}
             - name: Test with tox
+              if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               run: tox -e postgres
     windows:
         name: Python unit tests on Windows Server
@@ -124,7 +181,6 @@ jobs:
             max-parallel: 5
             matrix:
                 python-version: [3.6]
-
         steps:
             - uses: actions/checkout@v2
             - name: Set up Python ${{ matrix.python-version }}
diff --git a/.gitignore b/.gitignore
index d40ef0ca..8dd2941e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -85,6 +85,7 @@ venv/
 ENV/
 .venv
 Pipfile
+.envrc
 
 # Spyder project settings
 .spyderproject
@@ -97,4 +98,4 @@ Pipfile
 
 *.db
 
-.vscode
\ No newline at end of file
+.vscode

From 2217f6b8f7aba4b8d12dfdbd2138f5277da77dbb Mon Sep 17 00:00:00 2001
From: Blaine Jester <blainesworld@gmail.com>
Date: Mon, 11 Sep 2023 08:30:46 -0700
Subject: [PATCH 2/5] Fix linting issue

---
 morango/management/commands/cleanupsyncs.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/morango/management/commands/cleanupsyncs.py b/morango/management/commands/cleanupsyncs.py
index 6cec04b6..42915759 100644
--- a/morango/management/commands/cleanupsyncs.py
+++ b/morango/management/commands/cleanupsyncs.py
@@ -88,10 +88,10 @@ def handle(self, *args, **options):
         if options["sync_filter"]:
             transfer_sessions = transfer_sessions.filter(filter__startswith=options["sync_filter"])
 
-        if options["push"] == True and not options["pull"]:
+        if options["push"] and not options["pull"]:
             transfer_sessions = transfer_sessions.filter(push=True)
 
-        if options["pull"] == True and not options["push"]:
+        if options["pull"] and not options["push"]:
             transfer_sessions = transfer_sessions.filter(push=False)
 
         transfer_count = transfer_sessions.count()

From 6c733df61a2725876229965c25e1da07a082b393 Mon Sep 17 00:00:00 2001
From: Blaine Jester <blainesworld@gmail.com>
Date: Mon, 11 Sep 2023 08:47:48 -0700
Subject: [PATCH 3/5] Python2.7 backports for test.support

---
 tests/testapp/tests/compat.py                       | 10 ++++++++++
 tests/testapp/tests/helpers.py                      |  2 +-
 tests/testapp/tests/integration/test_syncsession.py |  2 +-
 tests/testapp/tests/sync/test_controller.py         |  2 +-
 tests/testapp/tests/test_api.py                     |  2 +-
 tests/testapp/tests/test_uuid_utilities.py          |  9 ++++-----
 tox.ini                                             |  1 +
 7 files changed, 19 insertions(+), 9 deletions(-)
 create mode 100644 tests/testapp/tests/compat.py

diff --git a/tests/testapp/tests/compat.py b/tests/testapp/tests/compat.py
new file mode 100644
index 00000000..16b1c8a1
--- /dev/null
+++ b/tests/testapp/tests/compat.py
@@ -0,0 +1,10 @@
+try:
+    # In the Python 2.7 GH workflows, we have to install backported version
+    from backports.test.support import EnvironmentVarGuard # noqa F401
+except ImportError:
+    try:
+        # For python >2.7 and <3.10
+        from test.support import EnvironmentVarGuard # noqa F401
+    except ImportError:
+        # In Python 3.10, this has been moved to test.support.os_helper
+        from test.support.os_helper import EnvironmentVarGuard # noqa F401
diff --git a/tests/testapp/tests/helpers.py b/tests/testapp/tests/helpers.py
index ce7cb832..95d185aa 100644
--- a/tests/testapp/tests/helpers.py
+++ b/tests/testapp/tests/helpers.py
@@ -3,7 +3,6 @@
 """
 import json
 import uuid
-from test.support import EnvironmentVarGuard
 
 import factory
 import mock
@@ -18,6 +17,7 @@
 from facility_profile.models import MyUser
 from facility_profile.models import SummaryLog
 
+from .compat import EnvironmentVarGuard
 from morango.api.serializers import BufferSerializer
 from morango.models.core import AbstractStore
 from morango.models.core import Buffer
diff --git a/tests/testapp/tests/integration/test_syncsession.py b/tests/testapp/tests/integration/test_syncsession.py
index 010d422a..4b5d76af 100644
--- a/tests/testapp/tests/integration/test_syncsession.py
+++ b/tests/testapp/tests/integration/test_syncsession.py
@@ -1,6 +1,5 @@
 import contextlib
 import json
-from test.support import EnvironmentVarGuard
 
 import mock
 import pytest
@@ -12,6 +11,7 @@
 from facility_profile.models import SummaryLog
 from requests.exceptions import Timeout
 
+from ..compat import EnvironmentVarGuard
 from morango.errors import MorangoError
 from morango.models.certificates import Certificate
 from morango.models.certificates import Filter
diff --git a/tests/testapp/tests/sync/test_controller.py b/tests/testapp/tests/sync/test_controller.py
index 7fe4df42..b0c16dd3 100644
--- a/tests/testapp/tests/sync/test_controller.py
+++ b/tests/testapp/tests/sync/test_controller.py
@@ -1,7 +1,6 @@
 import contextlib
 import json
 import uuid
-from test.support import EnvironmentVarGuard
 
 import factory
 import mock
@@ -12,6 +11,7 @@
 from facility_profile.models import MyUser
 from facility_profile.models import SummaryLog
 
+from ..compat import EnvironmentVarGuard
 from ..helpers import serialized_facility_factory
 from ..helpers import TestSessionContext
 from morango.constants import transfer_stages
diff --git a/tests/testapp/tests/test_api.py b/tests/testapp/tests/test_api.py
index a47f94f9..01d7399b 100644
--- a/tests/testapp/tests/test_api.py
+++ b/tests/testapp/tests/test_api.py
@@ -1,7 +1,6 @@
 import json
 import sys
 import uuid
-from test.support import EnvironmentVarGuard
 
 from django.db import connection
 from django.test.utils import CaptureQueriesContext
@@ -13,6 +12,7 @@
 from facility_profile.models import MyUser
 from rest_framework.test import APITestCase as BaseTestCase
 
+from .compat import EnvironmentVarGuard
 from morango.api.serializers import BufferSerializer
 from morango.api.serializers import CertificateSerializer
 from morango.api.serializers import InstanceIDSerializer
diff --git a/tests/testapp/tests/test_uuid_utilities.py b/tests/testapp/tests/test_uuid_utilities.py
index 7eb53678..74c7c1c4 100644
--- a/tests/testapp/tests/test_uuid_utilities.py
+++ b/tests/testapp/tests/test_uuid_utilities.py
@@ -1,14 +1,14 @@
 import hashlib
-import mock
 import sys
 import uuid
 
+import mock
 from django.test import TestCase
 from facility_profile.models import Facility
 from facility_profile.models import InteractionLog
 from facility_profile.models import MyUser
-from test.support import EnvironmentVarGuard
 
+from .compat import EnvironmentVarGuard
 from morango.errors import InvalidMorangoSourceId
 from morango.models.core import DatabaseIDModel
 from morango.models.core import InstanceIDModel
@@ -157,9 +157,9 @@ def test_consistent_0_5_instance_id(self, *args):
             env["MORANGO_SYSTEM_ID"] = "magicsysid"
 
             DatabaseIDModel.objects.all().update(current=False)
-            database_id = DatabaseIDModel.objects.create(
+            DatabaseIDModel.objects.create(
                 id="7fe445b75cea11858c00fb97bdee8878", current=True
-            ).id
+            )
 
             self.assertEqual(get_0_5_system_id(), "54940f560a55bbf7d86b")
             self.assertEqual(get_0_5_mac_address(), "804f4c20d3b2b5a29b95")
@@ -197,7 +197,6 @@ def test_envvar_overrides(self, *args):
 
             self.assertEqual(instance.id, expected_id)
 
-
     @mock.patch(
         "ifcfg.interfaces",
         return_value={"eth0": {"device": "eth0", "ether": "a0:aa:aa:aa:aa"}},
diff --git a/tox.ini b/tox.ini
index 220bf7c4..4138f493 100644
--- a/tox.ini
+++ b/tox.ini
@@ -28,6 +28,7 @@ deps =
   cryptography1.2: cryptography==1.2.3
   cryptography1.8: cryptography==1.8.2
   cryptography2.3: cryptography==2.3.1
+  py2.7: backports.test.support==0.1.1
 
 commands =
   sh -c '! tests/testapp/manage.py makemigrations --dry-run --exit --noinput'

From fed7ed98aca33e898f24a96edeeeea13cef3963a Mon Sep 17 00:00:00 2001
From: Blaine Jester <blainesworld@gmail.com>
Date: Mon, 11 Sep 2023 15:34:51 -0700
Subject: [PATCH 4/5] Bump ubuntu 18.04 to 20.04, create matrixized jobs for
 2.7, 3.4, 3.5

---
 .github/workflows/tox.yml | 50 +++++++++++++++++++++++----------------
 1 file changed, 29 insertions(+), 21 deletions(-)

diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index 87414f62..93ba66ff 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -18,11 +18,11 @@ jobs:
     unit_test:
         name: Python unit tests
         needs: pre_job
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-20.04
         strategy:
             max-parallel: 5
             matrix:
-                python-version: [3.4, 3.5, 3.6, 3.7, 3.8, 3.9]
+                python-version: [3.6, 3.7, 3.8, 3.9]
         steps:
             - uses: actions/checkout@v2
             - name: Set up Python ${{ matrix.python-version }}
@@ -44,12 +44,16 @@ jobs:
             - name: Test with tox
               if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               run: tox -e py${{ matrix.python-version }}
-    unit_test27:
-        name: Python unit tests (2.7)
+    unit_test_deprecated:
+        name: Python unit tests (deprecated python versions)
         needs: pre_job
         runs-on: ubuntu-20.04
+        strategy:
+            max-parallel: 3
+            matrix:
+                python-version: [2.7, 3.4, 3.5]
         container:
-            image: python:2.7.18-buster
+            image: python:${{ matrix.python-version }}
         steps:
             - uses: actions/checkout@v2
             - name: Install tox
@@ -61,20 +65,20 @@ jobs:
               if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               uses: actions/cache@v2
               with:
-                  path: ${{ github.workspace }}/.tox/py2.7
-                  key: ${{ runner.os }}-tox-py2.7-${{ hashFiles('setup.py', 'requirements/*.txt') }}
+                  path: ${{ github.workspace }}/.tox/py${{ matrix.python-version }}
+                  key: ${{ runner.os }}-tox-py${{ matrix.python-version }}-${{ hashFiles('setup.py', 'requirements/*.txt') }}
             - name: Test with tox
               if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
-              run: tox -e py2.7
+              run: tox -e py${{ matrix.python-version }}
     cryptography:
         name: Python unit tests + cryptography
         needs: pre_job
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-20.04
         strategy:
             max-parallel: 5
             matrix:
                 # only crypto 2.3 seems to work
-                python-version: [ 3.4, 3.5, 3.6, 3.7, 3.8, 3.9 ]
+                python-version: [ 3.6, 3.7, 3.8, 3.9 ]
                 crypto-version: [ 2.3 ]
         steps:
             - uses: actions/checkout@v2
@@ -102,12 +106,16 @@ jobs:
             - name: Test with tox
               if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               run: tox -e py${{ matrix.python-version }}-cryptography${{ matrix.crypto-version }}
-    cryptography27:
-        name: Python unit tests (2.7) + cryptography
+    cryptography_deprecated:
+        name: Python unit tests (deprecated python versions) + cryptography
         needs: pre_job
         runs-on: ubuntu-20.04
+        strategy:
+            max-parallel: 3
+            matrix:
+                python-version: [2.7, 3.4, 3.5]
         container:
-            image: python:2.7.18-buster
+            image: python:${{ matrix.python-version }}
         steps:
             - uses: actions/checkout@v2
             - name: Install system dependencies
@@ -124,15 +132,15 @@ jobs:
               if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               uses: actions/cache@v2
               with:
-                  path: ${{ github.workspace }}/.tox/py2.7
-                  key: ${{ runner.os }}-tox-py2.7-crypto3.3-${{ hashFiles('setup.py', 'requirements/*.txt') }}
+                  path: ${{ github.workspace }}/.tox/py${{ matrix.python-version }}
+                  key: ${{ runner.os }}-tox-py${{ matrix.python-version }}-crypto2.3-${{ hashFiles('setup.py', 'requirements/*.txt') }}
             - name: Test with tox
               if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
-              run: tox -e py2.7-cryptography2.3
+              run: tox -e py${{ matrix.python-version }}-cryptography2.3
     postgres:
         name: Python postgres unit tests
         needs: pre_job
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-20.04
         services:
             # Label used to access the service container
             postgres:
@@ -154,11 +162,11 @@ jobs:
                     - 5432:5432
         steps:
             - uses: actions/checkout@v2
-            - name: Set up Python 3.5 for Postgres
+            - name: Set up Python 3.6 for Postgres
               if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               uses: actions/setup-python@v2
               with:
-                  python-version: 3.5
+                  python-version: 3.6
             - name: Install tox
               if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               run: |
@@ -168,8 +176,8 @@ jobs:
               if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               uses: actions/cache@v2
               with:
-                  path: ${{ github.workspace }}/.tox/py${{ matrix.python-version }}
-                  key: ${{ runner.os }}-tox-py${{ matrix.python-version }}-${{ hashFiles('setup.py', 'requirements/*.txt') }}
+                  path: ${{ github.workspace }}/.tox/py3.6
+                  key: ${{ runner.os }}-tox-py3.6-${{ hashFiles('setup.py', 'requirements/*.txt') }}
             - name: Test with tox
               if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
               run: tox -e postgres

From 8fac257d006f50deb12bdea90c94f436cca984e6 Mon Sep 17 00:00:00 2001
From: Blaine Jester <blainesworld@gmail.com>
Date: Tue, 12 Sep 2023 11:16:56 -0700
Subject: [PATCH 5/5] fix test backports for 3.4 & 3.5, remove 3.4+crypto

---
 .github/workflows/tox.yml | 6 +++++-
 tox.ini                   | 4 +++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index 93ba66ff..68384f99 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -113,7 +113,11 @@ jobs:
         strategy:
             max-parallel: 3
             matrix:
-                python-version: [2.7, 3.4, 3.5]
+                # Packages are no longer available for the distribution that comes with the
+                # python:3.4 image, so we can't install the necessary dependencies. Eventually,
+                # this will happen to the others as well.
+                # EOL: [3.4]
+                python-version: [2.7, 3.5]
         container:
             image: python:${{ matrix.python-version }}
         steps:
diff --git a/tox.ini b/tox.ini
index 4138f493..fdc93f9c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,7 +20,7 @@ basepython =
   py3.7: python3.7
   py3.8: python3.8
   py3.9: python3.9
-  postgres: python3.5
+  postgres: python3.6
   windows: python3.6
 
 deps =
@@ -29,6 +29,8 @@ deps =
   cryptography1.8: cryptography==1.8.2
   cryptography2.3: cryptography==2.3.1
   py2.7: backports.test.support==0.1.1
+  py3.4: backports.test.support==0.1.1
+  py3.5: backports.test.support==0.1.1
 
 commands =
   sh -c '! tests/testapp/manage.py makemigrations --dry-run --exit --noinput'