Switch to declarative setup configuration

Author: mitya57

pyproject.toml

@@ -0,0 +1,2 @@
+[build-system]
+requires = ["setuptools>=30.3", "wheel"]

setup.cfg

@@ -1,2 +1,21 @@
+[metadata]
+name = python-markdown-math
+version = 0.6
+description = Math extension for Python-Markdown
+long_description = file: README.md
+long_description_content_type = text/markdown
+author = Dmitry Shachnev
+author_email = mitya57@gmail.com
+url = https://github.com/mitya57/python-markdown-math
+license = BSD 3-Clause License
+
+[options]
+py_modules = mdx_math
+install_requires = Markdown>=3.0
+
+[options.entry_points]
+markdown.extensions =
+    mdx_math = mdx_math:MathExtension
+
 [bdist_wheel]
 universal = 1

setup.py

@@ -2,22 +2,4 @@
 
 from setuptools import setup
 
-with open('README.md') as readme_file:
-    long_description = readme_file.read()
-
-setup(name='python-markdown-math',
-      description='Math extension for Python-Markdown',
-      long_description=long_description,
-      long_description_content_type='text/markdown',
-      author='Dmitry Shachnev',
-      author_email='mitya57@gmail.com',
-      version='0.6',
-      url='https://github.com/mitya57/python-markdown-math',
-      py_modules=['mdx_math'],
-      install_requires=['Markdown>=3.0'],
-      entry_points={
-          'markdown.extensions': [
-              'mdx_math = mdx_math:MathExtension',
-          ],
-      },
-      license='BSD')
+setup()