pyproject.toml: Move metadata here from setup.py

pyproject.toml

@@ -1,3 +1,32 @@
 [build-system]
-requires = ["setuptools", "wheel", "Cython", "Cython>=0.29.30; python_version > '3.10'"]
+requires = [
+    "setuptools>=61.2",
+    "Cython",
+    "Cython>=0.29.30; python_version > '3.10'"
+]
 build-backend = "setuptools.build_meta"
+
+[project]
+name = "memory_allocator"
+version = "0.1.3"
+description = "An extension class to allocate memory easily with cython"
+authors = [
+    {name = "Jeroen Demeyer, Nathann Cohen, Jonathan Kliem", email = "[email protected]"},
+]
+dependencies = [
+    "Cython",
+]
+requires-python = ">=3.6"
+readme = "README.md"
+license = {text = "GPLv3"}
+classifiers = [
+    "Development Status :: 2 - Pre-Alpha",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
+    "Programming Language :: Cython",
+    "Programming Language :: Python :: 3",
+    "Topic :: Scientific/Engineering :: Mathematics",
+]
+
+[project.urls]
+Homepage = "https://github.com/sagemath/memory_allocator"

setup.py

@@ -12,9 +12,6 @@ def run(self):
         du_build_ext.run(self)
 
 
-with open("README.md", "r", encoding="utf-8") as fh:
-    long_description = fh.read()
-
 extensions = [
     Extension(
         "memory_allocator.memory_allocator",
@@ -24,29 +21,8 @@ def run(self):
         sources=["memory_allocator/test.pyx"]),
     ]
 
+
 setup(
-    name='memory_allocator',
-    version='0.1.3',
-    description='An extension class to allocate memory easily with cython',
-    long_description=long_description,
-    long_description_content_type='text/markdown',
-    url='https://github.com/sagemath/memory_allocator',
-    author='Jeroen Demeyer, Nathann Cohen, Jonathan Kliem',
-    author_email='[email protected]',
-    license='GPLv3',
     packages=find_packages(),
     ext_modules=extensions,
-    zip_safe=False,
-    python_requires='>=3.6',
-    package_dir={'memory_allocator': 'memory_allocator'},
-    install_requires=["Cython"],
-    package_data={"memory_allocator": ["*.pxd"]},
-    cmdclass={'build_ext': build_ext},
-    classifiers=[
-        'Development Status :: 2 - Pre-Alpha',
-        'Intended Audience :: Science/Research',
-        'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
-        'Programming Language :: Python :: 3',
-        'Programming Language :: Cython',
-        'Topic :: Scientific/Engineering :: Mathematics']
-    )
+)