Merge branches #79, #77 and #78 into master

This patch is a combination of changes to CI and packaging that will
repair the CI and make the project buildable in the modern conditions,
while dropping support for ancient platforms.

Author: webknjaz

.github/workflows/tests.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         # Run in all these versions of Python
-        python-version: ['3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
 
     steps:
         # Checkout the latest code from the repo
@@ -28,14 +28,13 @@ jobs:
         # Display the Python version being used
       - name: Display Python version
         run: python -c "import sys; print(sys.version)"
-        # Install the package using the setup.py
-      - name: Install package
-        run: python setup.py install
         # Install pytest (you can use some other testing utility)
       - name: Install deps
         run: |
           python -m pip install --upgrade pip
           pip install -r requirements.txt -r test-requirements.txt
         # Run the tests. I'm using pytest and the file is in the tests directory.
+      - name: Install package
+        run: pip install .
       - name: Run tests
         run: pytest requests_unixsocket/tests

pyproject.toml

@@ -0,0 +1,6 @@
+[build-system]
+requires = [
+  "pbr >= 6",
+  "setuptools >= 64",
+]
+build-backend = "pbr.build"

setup.cfg

@@ -14,14 +14,14 @@ classifier =
     License :: OSI Approved :: Apache Software License
     Operating System :: OS Independent
     Programming Language :: Python
-    Programming Language :: Python :: 2
-    Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.3
-    Programming Language :: Python :: 3.4
-    Programming Language :: Python :: 3.5
-    Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
+    Programming Language :: Python :: 3.12
+    Programming Language :: Python :: 3.13
 test_suite = requests_unixsocket.tests
+python_requires = >= 3.9
 
 [files]
 packages = requests_unixsocket