Fix pep8 issues, move hostname declaration out of loop

app/utils/results.py

@@ -73,16 +73,14 @@ def get_site_alt(link: str) -> str:
         str: An updated (or ignored) result link
 
     """
-
-    for site_key in SITE_ALTS.keys():
-        if site_key not in link:
-            continue
-
     # Need to replace full hostname with alternative to encapsulate
     # subdomains as well
-        
     hostname = urlparse.urlparse(link).hostname
 
+    for site_key in SITE_ALTS.keys():
+        if not hostname or site_key not in hostname:
+            continue
+
         link = link.replace(hostname, SITE_ALTS[site_key])
         for prefix in SKIP_PREFIX:
             link = link.replace(prefix, '//')