[Bug #1545341] Allow 'classifier' parameter to be a tuple as well as a list. Will backport.

command/register.py

@@ -251,7 +251,7 @@ Your selection [default 1]: ''',
         body = StringIO.StringIO()
         for key, value in data.items():
             # handle multiple entries for the same name
-            if type(value) != type([]):
+            if type(value) not in (type([]), type( () )):
                 value = [value]
             for value in value:
                 value = unicode(value).encode("utf-8")