Update supported Python versions (#92)

* Update supported Python versions

- Remove Python 3.7 from the test matrix and list of supported versions
  in `setup.py`, as it reached end of life on 2023-06-27
- Add Python 3.12 to the list of tested / supported versions as the
  current major version

* Modernize usage of deprecated / removed features

- Replace usage of `python setup.py test` and the `PyTest` test command
  with a more direct invocation of `pytest` in `tox.ini`
- Replace usage of `pkg_resources.get_distribution` with
  `importlib.metadata` to get the installed version number for
  `vladiate`

.github/workflows/test.yml

@@ -5,11 +5,11 @@ jobs:
     strategy:
       matrix:
         python:
-          - "3.7"
           - "3.8"
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12"
     runs-on: ubuntu-latest
     steps:
     - name: Checkout

setup.py

@@ -2,31 +2,10 @@
 
 import sys
 from setuptools import setup, find_packages
-from setuptools.command.test import test as TestCommand
 
 __version__ = "0.0.26"
 
 
-class PyTest(TestCommand):
-    user_options = [("pytest-args=", "a", "Arguments to pass to py.test")]
-
-    def initialize_options(self):
-        TestCommand.initialize_options(self)
-        self.pytest_args = ["-x", "tests"]
-
-    def finalize_options(self):
-        TestCommand.finalize_options(self)
-        self.test_args = []
-        self.test_suite = True
-
-    def run_tests(self):
-        # import here, cause outside the eggs aren't loaded
-        import pytest
-
-        errno = pytest.main(self.pytest_args)
-        sys.exit(errno)
-
-
 def readme():
     with open("README.rst") as f:
         return f.read()
@@ -44,11 +23,11 @@ def readme():
         "Operating System :: OS Independent",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "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",
         "Intended Audience :: Developers",
     ],
     keywords="validate CSV vampires",
@@ -63,7 +42,6 @@ def readme():
     install_requires=[],
     extras_require={"s3": ["boto"]},
     tests_require=["pretend", "pytest", 'black;python_version>="3.6"'],
-    cmdclass={"test": PyTest},
     entry_points={
         "console_scripts": [
             "vladiate = vladiate.main:main",

tests/test_main.py

@@ -29,7 +29,7 @@ def test_parse_args():
     assert options.processes == 1
     assert options.show_version is False
     assert options.vladfile == "vladfile"
-    assert options.vlads == ["test"]
+    assert options.vlads == ["tests"]
 
 
 @pytest.mark.parametrize(

tox.ini

@@ -12,8 +12,9 @@ deps =
     black
 
 [testenv]
-commands = coverage run --append --source=vladiate setup.py test
+commands = coverage run --append --source=vladiate -m pytest tests
 deps =
+    pretend
     pytest
     coverage
 

vladiate/main.py

@@ -1,3 +1,4 @@
+from importlib.metadata import version
 from multiprocessing import Pool, Queue
 from vladiate import Vlad
 from vladiate import logs
@@ -7,7 +8,6 @@
 import sys
 import inspect
 from argparse import ArgumentParser
-from pkg_resources import get_distribution
 
 
 def parse_args():
@@ -187,7 +187,7 @@ def main():
     logger = logs.logger
 
     if arguments.show_version:
-        print("Vladiate %s" % (get_distribution("vladiate").version,))
+        print("Vladiate %s" % (version("vladiate"),))
         return exits.OK
 
     vladfile = find_vladfile(arguments.vladfile)