Drop python 2.7 support, move metadata to setup.cfg.

.github/workflows/pythonpackage.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [2.7, 3.5, 3.6, 3.7, 3.8, pypy3]
+        python-version: [3.5, 3.6, 3.7, 3.8, 3.9, '3.10', pypy3]
       fail-fast: false
 
     steps:
@@ -28,8 +28,6 @@ jobs:
     - name: Build
       run: |
         python setup.py build_ext -i
-      # Building C extensions doesn't work for Python 2.7 on Windows.
-      if: "!(matrix.os == 'windows-latest' && matrix.python-version == '2.7')"
     - name: Test suite run
       run: |
         python -m unittest patiencediff.test_patiencediff

patiencediff/test_patiencediff.py

@@ -24,10 +24,6 @@
 from . import _patiencediff_py
 
 
-if sys.version_info[0] == 3:
-    unichr = chr
-
-
 class TestPatienceDiffLib(unittest.TestCase):
 
     def setUp(self):
@@ -38,8 +34,8 @@ def setUp(self):
             _patiencediff_py.PatienceSequenceMatcher_py
 
     def test_diff_unicode_string(self):
-        a = ''.join([unichr(i) for i in range(4000, 4500, 3)])
-        b = ''.join([unichr(i) for i in range(4300, 4800, 2)])
+        a = ''.join([chr(i) for i in range(4000, 4500, 3)])
+        b = ''.join([chr(i) for i in range(4300, 4800, 2)])
         sm = self._PatienceSequenceMatcher(None, a, b)
         mb = sm.get_matching_blocks()
         self.assertEqual(35, len(mb))

releaser.conf

@@ -2,11 +2,6 @@ name: "patiencediff"
 timeout_days: 5
 tag_name: "v$VERSION"
 verify_command: "python3 setup.py test"
-update_version {
-  path: "setup.py"
-  match: "^      version=\"(.*)\","
-  new_line: "      version=\"$VERSION\","
-}
 update_version {
   path: "patiencediff/__init__.py"
   match: "^__version__ = \((.*)\)$"

setup.cfg

@@ -0,0 +1,19 @@
+[metadata]
+description = Python implementation of the patiencediff algorithm
+long-description = file:README.rst
+maintainer = Breezy Developers
+maintainer-email = team@breezy-vcs.org
+license = GNU GPLv2 or later
+homepage = https://www.breezy-vcs.org/
+version = attr:patiencediff.__version__
+classifiers =
+    Development Status :: 5 - Mature
+    License :: OSI Approved :: GNU General Public License v2 or later (GPLv2+)
+    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 :: Implementation :: CPython
+    Programming Language :: Python :: Implementation :: PyPy
+    Operating System :: POSIX

setup.py

@@ -4,9 +4,6 @@
 from setuptools import setup, Extension
 from distutils import core
 
-with open('README.rst', 'r') as f:
-    long_description = f.read()
-
 ext_modules = [
     Extension(
         'patiencediff._patiencediff_c',
@@ -30,25 +27,7 @@ def has_ext_modules(self):
 
 
 setup(name="patiencediff",
-      description="Python implementation of the patiencediff algorithm.",
-      long_description=long_description,
-      version="0.2.2",
-      maintainer="Breezy Developers",
-      maintainer_email="team@breezy-vcs.org",
-      license="GNU GPLv2 or later",
-      url="https://www.breezy-vcs.org/",
       packages=['patiencediff'],
       test_suite='patiencediff.test_patiencediff',
       distclass=Distribution,
-      classifiers=[
-          'Development Status :: 4 - Beta',
-          'License :: OSI Approved :: '
-          'GNU General Public License v2 or later (GPLv2+)',
-          'Programming Language :: Python :: 2.7',
-          'Programming Language :: Python :: 3.5',
-          'Programming Language :: Python :: 3.6',
-          'Programming Language :: Python :: Implementation :: CPython',
-          'Programming Language :: Python :: Implementation :: PyPy',
-          'Operating System :: POSIX',
-      ],
       ext_modules=ext_modules)