don't try to change url when None given

JonnyJD · Jun 13, 2013 · c3d6cad · c3d6cad
1 parent d4d3f67
commit c3d6cad
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/discid/disc.py b/discid/disc.py
@@ -274,10 +274,13 @@ def submission_url(self):
         This is a :obj:`unicode` or :obj:`str <python:str>` object.
         """
         url = self._get_submission_url()
-        # update submission url, which saves a couple of redirects
-        url = url.replace("//mm.", "//")
-        url = url.replace("/bare/cdlookup.html", "/cdtoc/attach")
-        return url
+        if url is None:
+            return None
+        else:
+            # update submission url, which saves a couple of redirects
+            url = url.replace("//mm.", "//")
+            url = url.replace("/bare/cdlookup.html", "/cdtoc/attach")
+            return url
 
     @property
     def first_track_num(self):