diff --git a/setup.cfg b/setup.cfg
index 8101f2e0..c3e359b1 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -2,8 +2,8 @@
 count=1
 select = W1, W2, W3, E11, E121, E122, E123, E124, E125, E127, E129, E13, E2, E3, E401, E5, E703, E711, E712, E713, E721, E731, E74, E9
 # https://pycodestyle.readthedocs.io/en/latest/intro.html#error-codes
-max-line-length = 145
+max-line-length = 142
 
 [isort]
-known_third_party=dbus,gi,mutagen,cairo,requests
+known_third_party=dbus,gi,mutagen,cairo,requests,github3,jinja2,magic
 known_first_party=gpodder,soco
diff --git a/share/gpodder/extensions/audio_converter.py b/share/gpodder/extensions/audio_converter.py
index 6437023d..7dbce54e 100644
--- a/share/gpodder/extensions/audio_converter.py
+++ b/share/gpodder/extensions/audio_converter.py
@@ -36,10 +36,12 @@ class gPodderExtension:
     MIME_TYPES = ('audio/x-m4a', 'audio/mp4', 'audio/mp4a-latm', 'audio/ogg', 'audio/opus')
     EXT = ('.m4a', '.ogg', '.opus')
     CMD = {'avconv': {'.mp3': ['-i', '%(old_file)s', '-q:a', '2', '-id3v2_version', '3', '-write_id3v1', '1', '%(new_file)s'],
-                      '.ogg': ['-i', '%(old_file)s', '-q:a', '2', '%(new_file)s'], '.opus': ['-i', '%(old_file)s', '-q:a', '2', '%(new_file)s']
+                      '.ogg': ['-i', '%(old_file)s', '-q:a', '2', '%(new_file)s'],
+                      '.opus': ['-i', '%(old_file)s', '-q:a', '2', '%(new_file)s']
                       },
            'ffmpeg': {'.mp3': ['-i', '%(old_file)s', '-q:a', '2', '-id3v2_version', '3', '-write_id3v1', '1', '%(new_file)s'],
-                      '.ogg': ['-i', '%(old_file)s', '-q:a', '2', '%(new_file)s'], '.opus': ['-i', '%(old_file)s', '-q:a', '2', '%(new_file)s']
+                      '.ogg': ['-i', '%(old_file)s', '-q:a', '2', '%(new_file)s'],
+                      '.opus': ['-i', '%(old_file)s', '-q:a', '2', '%(new_file)s']
                       }
            }
 
diff --git a/src/gpodder/gtkui/main.py b/src/gpodder/gtkui/main.py
index 9258fbbd..ecd9e775 100644
--- a/src/gpodder/gtkui/main.py
+++ b/src/gpodder/gtkui/main.py
@@ -2755,7 +2755,10 @@ class gPodder(BuilderWidget, dbus.service.Object):
 
             if not episodes:
                 title = _('Episodes are locked')
-                message = _('The selected episodes are locked. Please unlock the episodes that you want to delete before trying to delete them.')
+                message = _(
+                    'The selected episodes are locked. Please unlock the '
+                    'episodes that you want to delete before trying '
+                    'to delete them.')
                 self.notification(message, title, widget=self.treeAvailable)
                 return False
 
diff --git a/src/gpodder/model.py b/src/gpodder/model.py
index 66da39af..2e0921ec 100644
--- a/src/gpodder/model.py
+++ b/src/gpodder/model.py
@@ -1272,6 +1272,7 @@ def check_root_folder_path():
             + 1 + PodcastChannel.MAX_FOLDERNAME_LENGTH \
             + 1 + PodcastEpisode.MAX_FILENAME_LENGTH + 5  # eg. .opus
         if longest > 260:
-            return _("Warning: path to gPodder home (%(root)s) is very long and can result in failure to download files.\n" % {"root": root}) \
+            return _("Warning: path to gPodder home (%(root)s) is very long "
+                     "and can result in failure to download files.\n" % {"root": root}) \
                 + _("You're advised to set it to a shorter path.")
     return None
diff --git a/tools/github_release.py b/tools/github_release.py
index 2aff941e..46528ce4 100755
--- a/tools/github_release.py
+++ b/tools/github_release.py
@@ -3,17 +3,15 @@
 Prepare release and upload Windows and macOS artifacts
 """
 import argparse
-import difflib
-import glob
 import hashlib
 import os
-import sys
 import re
+import sys
 
-from github3 import login
-from jinja2 import Template
 import magic
 import requests
+from github3 import login
+from jinja2 import Template
 
 
 def debug_requests():
@@ -94,6 +92,7 @@ def checksums():
         ret[os.path.basename(archive)] = dict(md5=m.hexdigest(), sha256=s.hexdigest())
     return ret
 
+
 def get_contributors(tag, previous_tag):
     """
     list contributor logins '@...' for every commit in range