Drop 3.7 support, add 3.12 support. (#262)

* chore: Use `pip install -e .` instead of `python setup.py develop`

Python 3.12 no longer ships setuptools (or distutils) by default, so
`python setup.py develop` will fail with ModuleNotFoundError before
any tests run -- and `setup.py develop` has been deprecated since
setuptools 58 (2021) anyway.

Switch to `pip install -e .`, the supported replacement, which pulls
in setuptools as a build dependency automatically, so it works on
every Python version in the matrix.

* ci: drop Python 3.7, add 3.12 to the test matrix

ubuntu-latest is now Ubuntu 24.04, which actions/setup-python no longer
ships a prebuilt Python 3.7 interpreter for. 3.7 has been EOL since
June 2023. Add 3.12 in its place to keep coverage current.

* chore: Update setup.py classifiers to match the tested Python versions

Drop the 2.7/3.4/3.5/3.6/3.7 classifiers -- they are all EOL and now
untested. Add 3.10/3.11/3.12 so the classifiers reflect the versions
actually exercised in CI.

* chore: Align tox envlist with the CI Python matrix

Drop py27/py34/py35/py36/py37 (which are all EOL, and no longer tested
in CI) and add py311/py312, so `tox` locally runs the same set of
versions as CI.

Author: alexmv

.ci-before-script.sh

@@ -2,7 +2,7 @@
 set -ex
 
 python -m pip install --upgrade pip
-pip install -r requirements_test.txt && python setup.py develop
+pip install -r requirements_test.txt && pip install -e .
 
 if [ "$STEP" != "tests" ]; then
     exit 0

.ci-runs-tests.sh

@@ -4,7 +4,7 @@ env
 if [ "$STEP" = "tests" ]; then
     py.test --version
     export PYTHONPATH=.
-    python setup.py develop
+    pip install -e .
     py.test --cov=bmemcached
     exit 0
 fi

.github/workflows/tests-and-lint.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.7, 3.8, 3.9, "3.10", 3.11]
+        python-version: [3.8, 3.9, "3.10", 3.11, 3.12]
 
     steps:
       - uses: actions/checkout@v2

setup.py

@@ -25,13 +25,11 @@ def read(filename):
         "Development Status :: 4 - Beta",
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
-        "Programming Language :: Python :: 2.7",
-        "Programming Language :: Python :: 3.4",
-        "Programming Language :: Python :: 3.5",
-        "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",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
     ],
     install_requires=[
         "six",

tox.ini

@@ -1,7 +1,7 @@
 [tox]
-envlist = py27,py34,py35,py36,py37,py38,py39,py310
+envlist = py38,py39,py310,py311,py312
 [testenv]
 deps = -rrequirements_test.txt
-commands = python setup.py develop
+commands = pip install -e .
     py.test -s
     flake8