diff --git a/aider/commands.py b/aider/commands.py
index fb5c12bd6..c3e9ec67a 100644
--- a/aider/commands.py
+++ b/aider/commands.py
@@ -906,16 +906,16 @@ class Commands:
                 if args.strip():
                     filename = args.strip()
                     ext = os.path.splitext(filename)[1].lower()
-                    if ext in ('.jpg', '.jpeg', '.png'):
+                    if ext in (".jpg", ".jpeg", ".png"):
                         basename = filename
                     else:
                         basename = f"{filename}.png"
                 else:
                     basename = "clipboard_image.png"
-                
+
                 temp_dir = tempfile.mkdtemp()
                 temp_file_path = os.path.join(temp_dir, basename)
-                image_format = 'PNG' if basename.lower().endswith('.png') else 'JPEG'
+                image_format = "PNG" if basename.lower().endswith(".png") else "JPEG"
                 image.save(temp_file_path, image_format)
 
                 abs_file_path = Path(temp_file_path).resolve()