Remove Python 3.6; add Python 3.10.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

.github/workflows/zulip-ci.yml

@@ -17,33 +17,24 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          # Base images are built using `tools/ci/Dockerfile.prod.template`.
+          # Focal ships with Python 3.8.10.
-          # The comments at the top explain how to build and upload these images.
-          # Bionic ships with Python 3.6.
-          - docker_image: zulip/ci:bionic
-            name: Ubuntu 18.04 Bionic (Python 3.6, backend)
-            os: bionic
-            is_bionic: true
-            include_frontend_tests: false
-            # Configure this test to run with the Zulip 3.2 release.
-            legacy_client_interface: 3
-            server_version: refs/tags/3.2
-          # Focal ships with Python 3.8.2.
           - docker_image: zulip/ci:focal
-            name: Ubuntu 20.04 Focal (Python 3.8, backend)
+            name: Ubuntu 20.04 (Python 3.8, backend)
             os: focal
-            is_focal: true
+            legacy_client_interface: "3"
-            include_frontend_tests: false
+            server_version: refs/tags/3.2
-            legacy_client_interface: 4
-            server_version: refs/tags/4.0
           # Bullseye ships with Python 3.9.2.
           - docker_image: zulip/ci:bullseye
-            name: Debian 11 Bullseye (Python 3.9, backend)
+            name: Debian 11 (Python 3.9, backend)
             os: bullseye
-            is_bullseye: true
+            legacy_client_interface: "4"
-            include_frontend_tests: false
-            legacy_client_interface: 4
             server_version: refs/tags/4.0
+          # Ubuntu 22.04 ships with Python 3.10.6.
+          - docker_image: zulip/ci:jammy
+            name: Ubuntu 22.04 (Python 3.10, backend)
+            os: jammy
+            legacy_client_interface: "6"
+            server_version: refs/tags/6.0
 
     runs-on: ubuntu-latest
     name: ${{ matrix.name }} (Zulip ${{matrix.server_version}})
@@ -58,25 +49,18 @@ jobs:
       HOME: /home/github/
 
     steps:
-      - name: 'Checkout python-zulip-api'
+      - name: "Check out python-zulip-api"
         uses: actions/checkout@v2
         with:
           path: api
 
-      - name: 'Checkout Zulip server ${{ matrix.server_version }}'
+      - name: "Check out Zulip server ${{ matrix.server_version }}"
         uses: actions/checkout@v2
         with:
           repository: zulip/zulip
           ref: ${{ matrix.server_version }}
           path: server
 
-      - name: Do Bionic hack
-        if: ${{ matrix.is_bionic }}
-        run: |
-          # Temporary hack till `sudo service redis-server start` gets fixes in Bionic. See
-          # https://chat.zulip.org/#narrow/stream/3-backend/topic/Ubuntu.20bionic.20CircleCI
-          sudo sed -i '/^bind/s/bind.*/bind 0.0.0.0/' /etc/redis/redis.conf
-
       - name: Install dependencies
         run: |
           cd server

.github/workflows/zulip-tests.yml

@@ -13,10 +13,10 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Setup Python 3.6
+      - name: Set up Python 3.7
         uses: actions/setup-python@v2
         with:
-          python-version: 3.6
+          python-version: "3.7"
 
       - name: Install dependencies
         run: tools/provision --force
@@ -32,15 +32,12 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: ["3.7", "3.8", "3.9", "3.10"]
-        exclude:
-          - os: windows-latest
-            python-version: 3.6 # cryptography install fails on Windows with python 3.6 since pip is quite old.
 
     steps:
       - uses: actions/checkout@v2
 
-      - name: Setup Python ${{ matrix.python-version }}
+      - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.black]
 line-length = 100
-target-version = ["py36"]
+target-version = ["py37"]
 
 [tool.isort]
 src_paths = [

zulip/README.md

@@ -3,7 +3,7 @@
 The [Zulip API](https://zulip.com/api) Python bindings require the
 following dependencies:
 
-* **Python (version >= 3.6)**
+* **Python (version >= 3.7)**
 * requests (version >= 0.12.1)
 
 **Note**: If you'd like to use the Zulip bindings with Python 2, we

zulip/integrations/bridge_with_matrix/test_matrix.py

@@ -41,7 +41,7 @@ topic = matrix
 ZULIP_MESSAGE_TEMPLATE: str = "**{username}** [{uid}]: {message}"
 
 
-# For Python 3.6 compatibility.
+# For Python 3.7 compatibility.
 # (Since 3.8, there is unittest.IsolatedAsyncioTestCase!)
 # source: https://stackoverflow.com/a/46324983
 def async_test(coro: Callable[..., Awaitable[Any]]) -> Callable[..., Any]:

zulip/setup.py

@@ -42,12 +42,12 @@ setup(
         "License :: OSI Approved :: Apache Software License",
         "Topic :: Communications :: Chat",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
     ],
-    python_requires=">=3.6",
+    python_requires=">=3.7",
     url="https://www.zulip.org/",
     project_urls={
         "Source": "https://github.com/zulip/python-zulip-api/",

zulip_bots/setup.py

@@ -34,12 +34,12 @@ setup(
         "License :: OSI Approved :: Apache Software License",
         "Topic :: Communications :: Chat",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
     ],
-    python_requires=">=3.6",
+    python_requires=">=3.7",
     url="https://www.zulip.org/",
     project_urls={
         "Source": "https://github.com/zulip/python-zulip-api/",

zulip_bots/zulip_bots/bots/chessbot/requirements.txt

@@ -1,2 +1 @@
-python-chess==0.31.* ; python_version < '3.7'
+chess==1.*
-chess==1.* ; python_version >= '3.7'

zulip_botserver/setup.py

@@ -22,12 +22,12 @@ setup(
         "License :: OSI Approved :: Apache Software License",
         "Topic :: Communications :: Chat",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
     ],
-    python_requires=">=3.6",
+    python_requires=">=3.7",
     url="https://www.zulip.org/",
     project_urls={
         "Source": "https://github.com/zulip/python-zulip-api/",