Drop Python 2 support

See quodlibet#410

.travis.yml

@@ -1,10 +1,5 @@
 matrix:
   include:
-    - os: linux
-      dist: trusty
-      language: python
-      python: "2.7"
-      env: TYPE="linux" PYVER="2.7" PYARGS="-R"
     - os: linux
       dist: xenial
       language: python
@@ -27,11 +22,6 @@ matrix:
       language: python
       python: "3.8"
       env: TYPE="linux" PYVER="3.8" PYARGS="-R -bb"
-    - os: linux
-      dist: trusty
-      language: python
-      python: "pypy"
-      env: TYPE="linux" PYVER="pypy" PYARGS="-R"
     - os: linux
       dist: xenial
       language: python
@@ -40,19 +30,13 @@ matrix:
     - os: osx
       language: generic
       env: TYPE="osx" PYVER="3" PYARGS="-R -bb"
-    - os: osx
-      language: generic
-      env: TYPE="osx" PYVER="2" PYARGS="-R"
 
 install:
   - if [ "$TYPE" == "osx" ]; then brew update; fi
-  - if [ "$TYPE" == "osx" ] && [ "$PYVER" == "3" ]; then brew unlink python@2 || true; fi
-  - if [ "$TYPE" == "osx" ] && [ "$PYVER" == "3" ]; then brew install python || brew upgrade python; fi
-  - if [ "$TYPE" == "osx" ] && [ "$PYVER" == "3" ]; then python3 -m pip install virtualenv; fi
-  - if [ "$TYPE" == "osx" ] && [ "$PYVER" == "3" ]; then virtualenv venv -p python3; fi
-  - if [ "$TYPE" == "osx" ] && [ "$PYVER" == "2" ]; then brew install python@2 || brew upgrade python@2; fi
-  - if [ "$TYPE" == "osx" ] && [ "$PYVER" == "2" ]; then python2 -m pip install virtualenv; fi
-  - if [ "$TYPE" == "osx" ] && [ "$PYVER" == "2" ]; then virtualenv venv -p python2; fi
+  - if [ "$TYPE" == "osx" ]; then brew unlink python@2 || true; fi
+  - if [ "$TYPE" == "osx" ]; then brew install python || brew upgrade python; fi
+  - if [ "$TYPE" == "osx" ]; then python3 -m pip install virtualenv; fi
+  - if [ "$TYPE" == "osx" ]; then virtualenv venv -p python3; fi
   - if [ "$TYPE" == "osx" ]; then source venv/bin/activate; fi
   - if [ "$TYPE" == "linux" ] || [ "$TYPE" == "osx" ]; then python -m pip install --upgrade pycodestyle pyflakes pytest hypothesis coverage codecov attrs; fi
   - if [ "$TYPE" == "linux" ] || [ "$PYVER" == "3.6" ]; then python -m pip install --upgrade sphinx sphinx_rtd_theme; fi

README.rst

@@ -12,7 +12,7 @@ It can read Xing headers to accurately calculate the bitrate and length of
 MP3s. ID3 and APEv2 tags can be edited regardless of audio format. It can also
 manipulate Ogg streams on an individual packet/page level.
 
-Mutagen works with Python 2.7, 3.5+ (CPython and PyPy) on Linux, Windows and
+Mutagen works with Python 3.5+ (CPython and PyPy) on Linux, Windows and
 macOS, and has no dependencies outside the Python standard library. Mutagen
 is licensed under the GPL version 2 or later.
 

azure-pipelines.yml

@@ -4,9 +4,6 @@ jobs:
       vmImage: 'vs2017-win2016'
     strategy:
       matrix:
-        Python27-x64:
-          python.version: '2.7'
-          python.arch: 'x64'
         Python35-x64:
           python.version: '3.5'
           python.arch: 'x64'
@@ -19,9 +16,6 @@ jobs:
         Python38-x64:
           python.version: '3.8'
           python.arch: 'x64'
-        Python27-x86:
-          python.version: '2.7'
-          python.arch: 'x86'
         Python38-x86:
           python.version: '3.8'
           python.arch: 'x86'

setup.cfg

@@ -13,7 +13,4 @@ exclude=
 [tool:pytest]
 markers=
     quality
-junit_family=xunit2
-
-[bdist_wheel]
-universal = 1
+junit_family=xunit2

setup.py

@@ -60,7 +60,22 @@ def should_remove(filename):
 distutils_sdist = get_command_class("sdist")
 
 
-class distcheck(distutils_sdist):
+def check_setuptools_for_dist():
+    if "setuptools" not in sys.modules:
+        raise Exception("setuptools not available")
+    version = tuple(map(int, sys.modules["setuptools"].__version__.split(".")))
+    if version < (24, 2, 0):
+        raise Exception("setuptools too old")
+
+
+class sdist(distutils_sdist):
+
+    def run(self):
+        check_setuptools_for_dist()
+        distutils_sdist.run(self)
+
+
+class distcheck(sdist):
 
     def _check_manifest(self):
         assert self.get_archive_files()
@@ -115,7 +130,7 @@ def _check_dist(self):
         os.chdir(old_pwd)
 
     def run(self):
-        distutils_sdist.run(self)
+        sdist.run(self)
         self._check_manifest()
         self._check_dist()
 
@@ -227,6 +242,9 @@ def run(self):
 
 
 if __name__ == "__main__":
+    if sys.version_info[0] < 3:
+        raise Exception("Python 2 no longer supported")
+
     from mutagen import version
 
     with open('README.rst') as h:
@@ -245,6 +263,7 @@ def run(self):
         "coverage": coverage_cmd,
         "distcheck": distcheck,
         "build_sphinx": build_sphinx,
+        "sdist": sdist,
     }
 
     setup(cmdclass=cmd_classes,
@@ -257,8 +276,6 @@ def run(self):
           license="GPL-2.0-or-later",
           classifiers=[
             'Operating System :: OS Independent',
-            'Programming Language :: Python :: 2',
-            'Programming Language :: Python :: 2.7',
             'Programming Language :: Python :: 3',
             'Programming Language :: Python :: 3.5',
             'Programming Language :: Python :: 3.6',
@@ -283,7 +300,7 @@ def run(self):
             ('share/man/man1', glob.glob("man/*.1")),
           ],
           python_requires=(
-            '>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4'),
+            '>=3.5, <4'),
           entry_points={
             'console_scripts': [
               'mid3cp=mutagen._tools.mid3cp:entry_point',