Add pyproject.toml (#17)

* Commit

* Update license metadata field

---------

Co-authored-by: Bodo Graumann <mail@bodograumann.de>

Author: StanFromIreland

README.md

@@ -85,7 +85,7 @@ Publishing
 
 We currently only publish source distributions.
 ```sh
-pip install twine
+pip install setuptools twine
 python setup.py sdist
 twine upload dist/*
 ```

pyproject.toml

@@ -0,0 +1,40 @@
+[build-system]
+requires = ["setuptools>=61.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "python-iconv"
+version = "1.1.4"
+description = "iconv-based Unicode converter"
+readme = "README.md"
+requires-python = ">=3.6"
+license = "GPL-3.0-or-later"
+maintainers = [
+    {name = "Bodo Graumann", email = "mail@bodograumann.de"}
+]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Developers",
+    "Operating System :: POSIX",
+    "Programming Language :: C",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.6",
+    "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",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+]
+keywords = ["iconv", "codec", "encoding", "unicode"]
+
+[project.urls]
+Homepage = "https://github.com/bodograumann/python-iconv"
+Repository = "https://github.com/bodograumann/python-iconv"
+Issues = "https://github.com/bodograumann/python-iconv/issues"
+
+[tool.setuptools]
+py-modules = ["iconvcodec"]

setup.py

@@ -9,19 +9,5 @@
     libraries = ["iconv"]
 
 setup(
-    name="python-iconv",
-    version="1.1.4",
-    description="iconv-based Unicode converter",
-    author="Bodo Graumann",
-    author_email="mail@bodograumann.de",
-    url="https://github.com/bodograumann/python-iconv",
-    long_description="""This is a port of Martin v. Loewis’ original iconv package to Python 3.
-
-The iconv module exposes the operating system's iconv character
-conversion routine to Python. This package provides an iconv wrapper
-as well as a Python codec to convert between Unicode objects and
-all iconv-provided encodings.
-""",
-    py_modules=["iconvcodec"],
     ext_modules=[Extension("iconv", sources=["iconvmodule.c"], libraries=libraries)],
 )