diff --git a/spotdl/const.py b/spotdl/const.py
index d6c76c6..4c77018 100644
--- a/spotdl/const.py
+++ b/spotdl/const.py
@@ -11,7 +11,7 @@ logzero.setup_default_logger(formatter=_formatter, level=_log_level)
 # Options
 # Initialize an empty object which can be assigned attributes
 # (useful when using spotdl as a library)
-args = type('', (), {})()
+args = type("", (), {})()
 
 # Apple has specific tags - see mutagen docs -
 # http://mutagen.readthedocs.io/en/latest/api/mp4.html
diff --git a/spotdl/convert.py b/spotdl/convert.py
index 5859c14..2edf30a 100644
--- a/spotdl/convert.py
+++ b/spotdl/convert.py
@@ -49,7 +49,9 @@ class Converter:
             # FFmpeg/avconv cannot have the same file for both input and output
             # This would happen when the extensions are same, so rename
             # the input track to append ".temp"
-            log.debug('Input file and output file are going will be same during encoding, will append ".temp" to input file just before starting encoding to avoid conflict')
+            log.debug(
+                'Input file and output file are going will be same during encoding, will append ".temp" to input file just before starting encoding to avoid conflict'
+            )
             input_song = output_song + ".temp"
             rename_to_temp = True
             delete_original = True
diff --git a/test/test_download_with_metadata.py b/test/test_download_with_metadata.py
index b1aceb8..ad840a3 100644
--- a/test/test_download_with_metadata.py
+++ b/test/test_download_with_metadata.py
@@ -178,18 +178,21 @@ class TestFFmpeg:
         assert " ".join(command) == expect_command
 
     def test_correct_container_for_m4a(self, filename_fixture, monkeypatch):
-        expect_command = "ffmpeg -y -hide_banner -nostats -v panic -i {0}.m4a.temp -acodec copy -b:a 192k -vn {0}.m4a".format(os.path.join(const.args.folder, filename_fixture))
+        expect_command = "ffmpeg -y -hide_banner -nostats -v panic -i {0}.m4a.temp -acodec copy -b:a 192k -vn {0}.m4a".format(
+            os.path.join(const.args.folder, filename_fixture)
+        )
         _, command = convert.song(
             filename_fixture + ".m4a", filename_fixture + ".m4a", const.args.folder
         )
-        assert ' '.join(command) == expect_command
+        assert " ".join(command) == expect_command
 
 
 class TestAvconv:
     def test_convert_from_m4a_to_mp3(self, filename_fixture, monkeypatch):
         monkeypatch.setattr("os.remove", lambda x: None)
         expect_command = "avconv -loglevel 0 -i {0}.m4a -ab 192k {0}.mp3 -y".format(
-            os.path.join(const.args.folder, filename_fixture))
+            os.path.join(const.args.folder, filename_fixture)
+        )
         _, command = convert.song(
             filename_fixture + ".m4a",
             filename_fixture + ".mp3",