switch to pyproject.toml, simplify requirements setup

pyproject.toml

@@ -0,0 +1,40 @@
+[build-system]
+requires = ["setuptools>=68.1", "wheel", "cython"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "python-pkcs11"
+version = "0.7.0"
+description = "PKCS#11 support for Python"
+readme = "README.md"
+authors = [
+    {name = "Andrey Kislyuk", email = "[email protected]"},
+    {name = "Danielle Madeley", email = "[email protected]"},
+]
+maintainers = [
+    {name = "Andrey Kislyuk", email = "[email protected]"},
+]
+classifiers = [
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Topic :: Security :: Cryptography",
+]
+dependencies = [
+    "asn1crypto>=1.4.0",
+]
+license = {text = "MIT License"}
+requires-python = ">=3.9"
+
+[project.urls]
+Homepage = "http://python-pkcs11.readthedocs.io/en/latest/"
+Documentation = "http://python-pkcs11.readthedocs.io/en/latest/"
+Issues = "https://github.com/pyauth/python-pkcs11/issues"
+Repository = "https://github.com/pyauth/python-pkcs11"
+
+[tool.setuptools.packages.find]
+include = ["pkcs11*"]

requirements.txt

@@ -1,9 +1 @@
-#
-# This file is autogenerated by pip-compile
-# To update, run:
-#
-#    pip-compile --output-file=requirements.txt requirements.in
-#
-aenum==2.0.7 ; python_version < "3.6"
-asn1crypto==1.4.0
-cached-property==1.5.2; python_version < "3.8"
+-e .

setup.py

@@ -1,61 +1,25 @@
-#!/usr/bin/env python
-"""
-setup.py
-"""
+# Add cython extension module to build configuration.
+#
+# See also: https://setuptools.pypa.io/en/latest/userguide/ext_modules.html
 
-from setuptools import setup, find_packages
-from setuptools.extension import Extension
+from setuptools import Extension, setup
 import platform
 
-# if compiling using MSVC, we need to link against user32 library
-if platform.system() == 'Windows':
-    libraries = ['user32',]
-else:
-    libraries = []
-
-if __name__ == '__main__':
-    with \
-            open('requirements.in') as requirements, \
-            open('README.rst') as readme:
-
-        ext_modules = [
-            Extension('pkcs11._pkcs11',
-                    sources=[
-                        'pkcs11/_pkcs11.pyx',
-                    ],
-                    libraries=libraries,
-            ),
-        ]
+libraries = []
 
-        setup(
-            name='python-pkcs11',
-            description='PKCS#11 (Cryptoki) support for Python',
-            use_scm_version=True,
-            author='Danielle Madeley',
-            author_email='[email protected]',
-            url='https://github.com/danni/python-pkcs11',
-            long_description=readme.read(),
-            classifiers=[
-                'License :: OSI Approved :: MIT License',
-                'Programming Language :: Python',
-                'Programming Language :: Python :: 3',
-                'Programming Language :: Python :: 3.5',
-                'Programming Language :: Python :: 3.6',
-                'Programming Language :: Python :: 3.7',
-                'Programming Language :: Python :: 3.8',
-                'Topic :: Security :: Cryptography',
-            ],
+# if compiling using MSVC, we need to link against user32 library
+if platform.system() == "Windows":
+    libraries.append("user32")
 
-            packages=find_packages(exclude=['tests']),
-            include_package_data=True,
-            ext_modules=ext_modules,
 
-            install_requires=requirements.readlines(),
-            setup_requires=[
-                'cython',
-                'setuptools >= 18.0',
-                'setuptools_scm',
+setup(
+    ext_modules=[
+        Extension(
+            name="pkcs11._pkcs11",
+            sources=[
+                "pkcs11/_pkcs11.pyx",
             ],
-
-            test_suite='tests',
-        )
+            libraries=libraries,
+        ),
+    ],
+)