Drop support for Python 3.7 (#893)

We have problems with openssl in the image for it we don't want to
solve and it reaches end of life in a month anyway

Author: ods

.github/workflows/publish.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with:
-          python-version: 3.7
+          python-version: "3.8"
       - name: Prepare C files to include
         run: |
           python -m pip install --upgrade pip setuptools
@@ -44,14 +44,14 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with:
-          python-version: 3.7
+          python-version: "3.8"
       - name: Set up QEMU
         if: ${{ matrix.arch == 'aarch64' }}
         uses: docker/setup-qemu-action@v1
       - name: Build wheels
         env:
           CIBW_ARCHS_LINUX: ${{matrix.arch}}
-          CIBW_BUILD: cp37-* cp38-* cp39-* cp310-* cp311-*
+          CIBW_BUILD: cp38-* cp39-* cp310-* cp311-*
           CIBW_SKIP: '*-musllinux*'
           CIBW_BEFORE_BUILD_LINUX: pip install -r requirements-cython.txt && yum install -y zlib-devel
           # On windows and mac we should have z library preinstalled
@@ -75,10 +75,8 @@ jobs:
     strategy:
       matrix:
         # 3.11 excluded due to problems with python-snappy
-        python: ["3.7", "3.8", "3.9", "3.10"]
+        python: ["3.8", "3.9", "3.10"]
         include:
-          - python: "3.7"
-            aiokafka_whl: dist/aiokafka-*-cp37-cp37m-win_amd64.whl
           - python: "3.8"
             aiokafka_whl: dist/aiokafka-*-cp38-cp38-win_amd64.whl
           - python: "3.9"
@@ -118,10 +116,8 @@ jobs:
 
     strategy:
       matrix:
-        python: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python: ["3.8", "3.9", "3.10", "3.11"]
         include:
-          - python: "3.7"
-            aiokafka_whl: dist/aiokafka-*-cp37-cp37m-macosx_10_9_x86_64.whl
           - python: "3.8"
             aiokafka_whl: dist/aiokafka-*-cp38-cp38-macosx_10_9_x86_64.whl
           - python: "3.9"
@@ -164,10 +160,8 @@ jobs:
 
     strategy:
       matrix:
-        python: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python: ["3.8", "3.9", "3.10", "3.11"]
         include:
-          - python: "3.7"
-            aiokafka_whl: dist/aiokafka-*-cp37-cp37m-manylinux*_x86_64.whl
           - python: "3.8"
             aiokafka_whl: dist/aiokafka-*-cp38-cp38-manylinux*_x86_64.whl
           - python: "3.9"
@@ -215,8 +209,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - pyver: cp37-cp37m
-            aiokafka_whl: dist/aiokafka-*-cp37-cp37m-manylinux*_aarch64.whl
           - pyver: cp38-cp38
             aiokafka_whl: dist/aiokafka-*-cp38-cp38-manylinux*_aarch64.whl
           - pyver: cp39-cp39

.github/workflows/tests.yml

@@ -74,7 +74,7 @@ jobs:
     strategy:
       matrix:
         # 3.11 excluded due to problems with python-snappy
-        python: ["3.7", "3.8", "3.9", "3.10"]
+        python: ["3.8", "3.9", "3.10"]
 
     steps:
     - uses: actions/checkout@v2
@@ -142,7 +142,7 @@ jobs:
 
     strategy:
       matrix:
-        python: ["3.7", "3.8", "3.9", "3.10"]
+        python: ["3.8", "3.9", "3.10"]
 
     steps:
     - uses: actions/checkout@v2
@@ -220,9 +220,6 @@ jobs:
             scala: "2.13"
 
           # Older python versions against latest broker
-          - python: "3.7"
-            kafka: "2.8.1"
-            scala: "2.13"
           - python: "3.8"
             kafka: "2.8.1"
             scala: "2.13"

docs/index.rst

@@ -2,7 +2,7 @@ Welcome to aiokafka's documentation!
 ====================================
 
 .. _GitHub: https://github.com/aio-libs/aiokafka
-.. _asyncio: http://docs.python.org/3.7/library/asyncio.html
+.. _asyncio: https://docs.python.org/3/library/asyncio.html
 .. _kafka-python: https://github.com/dpkp/kafka-python
 
 .. image:: https://img.shields.io/badge/kafka-1.0%2C%200.11%2C%200.10%2C%200.9-brightgreen.svg

setup.py

@@ -146,7 +146,6 @@ def read_version():
     "License :: OSI Approved :: Apache Software License",
     "Intended Audience :: Developers",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
@@ -175,7 +174,7 @@ def read_version():
     download_url="https://pypi.python.org/pypi/aiokafka",
     license="Apache 2",
     packages=["aiokafka"],
-    python_requires=">=3.7",
+    python_requires=">=3.8",
     install_requires=install_requires,
     extras_require=extras_require,
     include_package_data=True,

tests/test_fetcher.py

@@ -54,8 +54,6 @@ def test_fetch_result_and_error(loop):
     error = FetchError(
         error=OffsetOutOfRangeError({}), backoff=0)
 
-    # Python3.7 got rid of trailing comma in exceptions, which makes the line
-    # different between 3.6 and 3.7.
     assert repr(error) == "<FetchError error=OffsetOutOfRangeError({})>"