ENH: metadata PEP390 setup.cfg

https for Meson docs url

Co-Authored-By: Elliott Sales de Andrade <quantum.analyst@gmail.com>

.flake8

+[flake8]
+ignore =
+    # E241: multiple spaces after ':'
+    E241,
+    # E251: unexpected spaces around keyword / parameter equals
+    E251,
+    # E261: at least two spaces before inline comment
+    E261,
+    # E265: block comment should start with '# '
+    E265,
+    # E501: line too long
+    E501,
+    # E302: expected 2 blank lines, found 1
+    E302,
+    # E305: expected 2 blank lines after class or function definition, found 1
+    E305,
+    # E401: multiple imports on one line
+    E401,
+    # E266: too many leading '#' for block comment
+    E266,
+    # E402: module level import not at top of file
+    E402,
+    # E731: do not assign a lambda expression, use a def (too many false positives)
+    E731
+    # E741: ambiguous variable name 'l'
+    E741
+    # E722: do not use bare except'
+    E722
+    # W504: line break after binary operator
+    W504
+    # A003: builtin class attribute
+    A003
+max-line-length = 120

mypy.ini

+[mypy]
+strict_optional = False
+show_error_context = False
+show_column_numbers = True
\ No newline at end of file

setup.cfg

-[flake8]
-ignore =
-    # E241: multiple spaces after ':'
-    E241,
-    # E251: unexpected spaces around keyword / parameter equals
-    E251,
-    # E261: at least two spaces before inline comment
-    E261,
-    # E265: block comment should start with '# '
-    E265,
-    # E501: line too long
-    E501,
-    # E302: expected 2 blank lines, found 1
-    E302,
-    # E305: expected 2 blank lines after class or function definition, found 1
-    E305,
-    # E401: multiple imports on one line
-    E401,
-    # E266: too many leading '#' for block comment
-    E266,
-    # E402: module level import not at top of file
-    E402,
-    # E731: do not assign a lambda expression, use a def (too many false positives)
-    E731
-    # E741: ambiguous variable name 'l'
-    E741
-    # E722: do not use bare except'
-    E722
-    # W504: line break after binary operator
-    W504
-    # A003: builtin class attribute
-    A003
-max-line-length = 120
+[metadata]
+description = A high performance build system
+author = Jussi Pakkanen
+author_email = jpakkane@gmail.com
+url = https://mesonbuild.com
+keywords =
+  meson
+  mesonbuild
+  build system
+  cmake
+license = Apache License, Version 2.0
+license_file = COPYING
+classifiers =
+  Development Status :: 5 - Production/Stable
+  Environment :: Console
+  Intended Audience :: Developers
+  License :: OSI Approved :: Apache Software License
+  Natural Language :: English
+  Operating System :: MacOS :: MacOS X
+  Operating System :: Microsoft :: Windows
+  Operating System :: POSIX :: BSD
+  Operating System :: POSIX :: Linux
+  Programming Language :: Python :: 3 :: Only
+  Programming Language :: Python :: 3.5
+  Programming Language :: Python :: 3.6
+  Programming Language :: Python :: 3.7
+  Programming Language :: Python :: 3.8
+  Topic :: Software Development :: Build Tools
+long_description = Meson is a cross-platform build system designed to be both as fast and as user friendly as possible. It supports many languages and compilers, including GCC, Clang, PGI, Intel, and Visual Studio. Its build definitions are written in a simple non-Turing complete DSL.
+
+[options]
+python_requires = >= 3.5
+setup_requires =
+  setuptools >= 30.3.0
+  pip >= 10

setup.py

@@ -17,9 +17,8 @@
 import sys
 
 if sys.version_info < (3, 5, 0):
-    print('Tried to install with an unsupported version of Python. '
-          'Meson requires Python 3.5.0 or greater')
-    sys.exit(1)
+    raise SystemExit('ERROR: Tried to install Meson with an unsupported Python version: \n{}'
+                     '\nMeson requires Python 3.5.0 or greater'.format(sys.version))
 
 from mesonbuild.coredata import version
 from setuptools import setup
@@ -49,29 +48,7 @@ if sys.platform != 'win32':
 if __name__ == '__main__':
     setup(name='meson',
           version=version,
-          description='A high performance build system',
-          author='Jussi Pakkanen',
-          author_email='jpakkane@gmail.com',
-          url='http://mesonbuild.com',
-          license=' Apache License, Version 2.0',
-          python_requires='>=3.5',
           packages=packages,
           package_data=package_data,
           entry_points=entries,
-          data_files=data_files,
-          classifiers=['Development Status :: 5 - Production/Stable',
-                       'Environment :: Console',
-                       'Intended Audience :: Developers',
-                       'License :: OSI Approved :: Apache Software License',
-                       'Natural Language :: English',
-                       'Operating System :: MacOS :: MacOS X',
-                       'Operating System :: Microsoft :: Windows',
-                       'Operating System :: POSIX :: BSD',
-                       'Operating System :: POSIX :: Linux',
-                       'Programming Language :: Python :: 3 :: Only',
-                       'Topic :: Software Development :: Build Tools',
-                       ],
-          long_description='''Meson is a cross-platform build system designed to be both as
-    fast and as user friendly as possible. It supports many languages and compilers, including
-    GCC, Clang and Visual Studio. Its build definitions are written in a simple non-turing
-    complete DSL.''')
+          data_files=data_files,)