1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/lib2to3/pgen2/grammar.py b/Lib/lib2to3/pgen2/grammar.py
index c10dcfa..088c58b 100644
--- a/Lib/lib2to3/pgen2/grammar.py
+++ b/Lib/lib2to3/pgen2/grammar.py
@@ -108,6 +108,10 @@ class Grammar(object):
             d = pickle.load(f)
         self.__dict__.update(d)
 
+    def loads(self, pkl):
+        """Load the grammar tables from a pickle bytes object."""
+        self.__dict__.update(pickle.loads(pkl))
+
     def copy(self):
         """
         Copy the grammar.