@@ -30,7 +30,7 @@ class LookupModule(LookupBase):

         try:

             f = codecs.open(filename, 'r', encoding='utf-8')

-            creader = csv.reader(f, delimiter=delimiter)

+            creader = csv.reader(f, delimiter=str(delimiter))

             for row in creader:

                 if row[0] == key:

@@ -70,7 +70,7 @@ class LookupModule(LookupBase):

                 paramvals['delimiter'] = "\t"

             lookupfile = self._loader.path_dwim_relative(basedir, 'files', paramvals['file'])

-            var = self.read_csv(lookupfile, key, paramvals['delimiter'], paramvals['default'], paramvals['col'])

+            var = self.read_csv(lookupfile, key, str(paramvals['delimiter']), paramvals['default'], paramvals['col'])

             if var is not None:

                 if type(var) is list:

                     for v in var: