mutators partial_opts reference bug (#4730)

facebookresearch · Aug 9, 2022 · 85c842c · 85c842c
1 parent ae53361
commit 85c842c
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/parlai/core/teachers.py b/parlai/core/teachers.py
@@ -169,7 +169,9 @@ def add_cmdline_args(
             default=None,
             help='Apply one or more mutators to the data.',
         )
-        mutators = Mutator.load_mutator_types(partial_opt.get('mutators'))
+        mutators = Mutator.load_mutator_types(
+            partial_opt.get('mutators') if partial_opt else None
+        )
         for m in mutators:
             m.add_cmdline_args(parser, partial_opt)
         return parser