chore: remove remaining python2 compatibility workarounds

mopidy_beets/__init__.py

@@ -17,7 +17,7 @@ def get_default_config(self):
         return config.read(conf_file)
 
     def get_config_schema(self):
-        schema = super(BeetsExtension, self).get_config_schema()
+        schema = super().get_config_schema()
         schema["hostname"] = config.Hostname()
         schema["port"] = config.Port()
         return schema

mopidy_beets/actor.py

@@ -15,7 +15,7 @@ class BeetsBackend(pykka.ThreadingActor, backend.Backend):
     uri_schemes = ["beets"]
 
     def __init__(self, config, audio):
-        super(BeetsBackend, self).__init__()
+        super().__init__()
 
         beets_endpoint = "http://%s:%s" % (
             config["beets"]["hostname"],

mopidy_beets/client.py

@@ -17,7 +17,7 @@
 logger = logging.getLogger(__name__)
 
 
-class cache(object):  # noqa: N801
+class cache:
     # TODO: merge this to util library
 
     def __init__(self, ctl=8, ttl=3600):
@@ -51,9 +51,9 @@ def _memoized(*args):
         return _memoized
 
 
-class BeetsRemoteClient(object):
+class BeetsRemoteClient:
     def __init__(self, endpoint, proxy_config):
-        super(BeetsRemoteClient, self).__init__()
+        super().__init__()
         self.api = self._get_session(proxy_config)
         self.api_endpoint = endpoint
         logger.info("Connecting to Beets remote library %s", endpoint)

mopidy_beets/library.py

@@ -32,7 +32,7 @@ class BeetsLibraryProvider(backend.LibraryProvider):
     ]
 
     def __init__(self, *args, **kwargs):
-        super(BeetsLibraryProvider, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
         self.remote = self.backend.beets_api
         self.category_browsers = []
         for key, label, browser_class in self.root_categorie_list:

tests/test_extension.py

@@ -1,5 +1,3 @@
-from __future__ import unicode_literals
-
 import unittest
 
 from mopidy_beets import BeetsExtension