diff --git a/archivist/apps/sites/templatetags/media_filters.py b/archivist/apps/sites/templatetags/media_filters.py
index d858604..5df857a 100644
--- a/archivist/apps/sites/templatetags/media_filters.py
+++ b/archivist/apps/sites/templatetags/media_filters.py
@@ -3,34 +3,34 @@ from django import template
 register = template.Library()
 
 @register.filter
-def is_image (mime_type):
-    '''
+def is_image(mime_type):
+    """
     A function that takes the mime type as input and returns true if it is an image
-    '''
-    return mime_type.startswith('image/')
+    """
+    return mime_type.startswith("image/")
 
 
 @register.filter
-def is_video (mime_type):
-    '''
+def is_video(mime_type):
+    """
     A function that takes the mime type as input and returns true if it is an video
-    '''
-    return mime_type.startswith('video/')
+    """
+    return mime_type.startswith("video/")
 
 
 @register.filter
-def is_flash (mime_type):
-    '''
+def is_flash(mime_type):
+    """
     A function that takes the mime type as input and returns true if it is an flash
-    '''
+    """
 
     valid_flash_mime_types = [
-        'application/vnd.adobe.flash.movie',
-        'application/x-shockwave-flash',
-        'application/futuresplash',
-        'application/x-swf',
+        "application/vnd.adobe.flash.movie",
+        "application/x-shockwave-flash",
+        "application/futuresplash",
+        "application/x-swf",
     ]
-    
+
     for valid_type in valid_flash_mime_types:
         if valid_type in mime_type:
             return True