diff --git a/bot.py b/bot.py
index 899c1c6..68c3d1a 100644
--- a/bot.py
+++ b/bot.py
@@ -86,7 +86,9 @@ class MastodonRSSBot:
         try:
             feed = feedparser.parse(feed_url)
             if hasattr(feed, "bozo_exception"):
-                print(f"Warning: Feed parsing issue for {feed_url}: {feed.bozo_exception}")
+                print(
+                    f"Warning: Feed parsing issue for {feed_url}: {feed.bozo_exception}"
+                )
             return feed
         except Exception as e:
             print(f"Error parsing feed {feed_url}: {e}")
diff --git a/main.py b/main.py
index 597ec97..6826401 100644
--- a/main.py
+++ b/main.py
@@ -17,7 +17,9 @@ def main():
 
     # 2. Comma-separated list of feeds
     if os.environ.get("RSS_FEEDS"):
-        feeds = [url.strip() for url in os.environ["RSS_FEEDS"].split(",") if url.strip()]
+        feeds = [
+            url.strip() for url in os.environ["RSS_FEEDS"].split(",") if url.strip()
+        ]
         feed_urls.extend(feeds)
 
     # 3. File containing list of feeds
@@ -25,7 +27,11 @@ def main():
     if feeds_file and os.path.exists(feeds_file):
         try:
             with open(feeds_file, "r") as f:
-                file_feeds = [line.strip() for line in f if line.strip() and not line.startswith("#")]
+                file_feeds = [
+                    line.strip()
+                    for line in f
+                    if line.strip() and not line.startswith("#")
+                ]
                 feed_urls.extend(file_feeds)
         except Exception as e:
             print(f"Error reading feeds file {feeds_file}: {e}")
@@ -39,7 +45,9 @@ def main():
             seen.add(url)
 
     if not unique_feed_urls:
-        print("Error: No RSS feeds configured. Please set RSS_FEED_URL, RSS_FEEDS, or FEEDS_FILE.")
+        print(
+            "Error: No RSS feeds configured. Please set RSS_FEED_URL, RSS_FEEDS, or FEEDS_FILE."
+        )
         return
 
     bot = MastodonRSSBot(
diff --git a/test_bot.py b/test_bot.py
index d67ed8d..736595a 100644
--- a/test_bot.py
+++ b/test_bot.py
@@ -400,6 +400,7 @@ class TestMainEntry(unittest.TestCase):
             del os.environ["RSS_FEED_URL"]
 
         from main import main
+
         mock_bot_instance = Mock()
         mock_bot_class.return_value = mock_bot_instance