fix pyproject to be PEP621 compliant

pyproject.toml

@@ -29,6 +29,7 @@ classifiers = [
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
 ]
+dynamic=["version"]
 
 
 [project.urls]
@@ -39,7 +40,7 @@ changelog = "https://github.com/nucleic/kiwi/blob/main/releasenotes.rst"
 
 
 [build-system]
-requires = ["setuptools>=42", "wheel", "setuptools_scm[toml]>=3.4.3", "cppy>=1.2.0"]
+requires = ["setuptools>=61.2", "wheel", "setuptools_scm[toml]>=3.4.3", "cppy>=1.2.0"]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools_scm]

setup.py

@@ -44,34 +44,6 @@
 
 
 setup(
-    # FIXME remove once setuptool supports PEP 621
-    name="kiwisolver",
-    author="The Nucleic Development Team",
-    author_email="sccolbert@gmail.com",
-    url="https://github.com/nucleic/kiwi",
-    description="A fast implementation of the Cassowary constraint solver",
-    long_description=open("README.rst").read(),
-    license="BSD",
-    classifiers=[
-        # https://pypi.org/pypi?%3Aaction=list_classifiers
-        "License :: OSI Approved :: BSD License",
-        "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 :: Implementation :: CPython",
-        "Programming Language :: Python :: Implementation :: PyPy",
-    ],
-    python_requires=">=3.7",
-    # FIXME end of remove once setuptool supports PEP 621
-    setup_requires=[
-        "setuptools>=42",
-        "wheel",
-        "setuptools_scm[toml]>=3.4.3",
-        "cppy>=1.2.0",
-    ],
     package_dir={"": "py"},
     packages=["kiwisolver"],
     install_requires=["typing_extensions;python_version<'3.8'"],