diff --git a/common.py b/common.py
index b20f6e4..62706d9 100644
--- a/common.py
+++ b/common.py
@@ -1,5 +1,4 @@
 from subprocess import run
-import csv
 import json
 import time
 
diff --git a/encode.py b/encode.py
index b7e10bc..abe8951 100755
--- a/encode.py
+++ b/encode.py
@@ -1,14 +1,15 @@
 #!/usr/bin/env python3
-from datetime import datetime
-from mutagen.flac import Picture
-from mutagen.oggopus import OggOpus
-from mutagen.oggvorbis import OggVorbis
-from subprocess import run
-from urllib.parse import urlparse
 import base64
 import os
 import threading
 import xml.etree.ElementTree as ET
+from datetime import datetime
+from subprocess import run
+from urllib.parse import urlparse
+
+from mutagen.flac import Picture
+from mutagen.oggopus import OggOpus
+from mutagen.oggvorbis import OggVorbis
 
 import common
 
@@ -42,7 +43,7 @@ def encode_episode(podcast, episode, format):
 
         command = ["ffmpeg", "-y", "-loglevel", "error"]
         command.extend(["-i", infile])
-        if not format in ["oga", "opus"]:
+        if format not in ["oga", "opus"]:
             command.extend(["-i", episode["poster"]])
         command.extend(["-c:v", "copy"])
         command.extend(options)
diff --git a/metadata.py b/metadata.py
index 884cf49..4b1c7d7 100755
--- a/metadata.py
+++ b/metadata.py
@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
-from glob import glob
-from html.parser import HTMLParser
 import json
 import os.path
+from glob import glob
+from html.parser import HTMLParser
 
 import common