Avoid deepcopying utility code objects since they should not get muta…

…ted anyway.
cython · Jun 17, 2018 · 259da7c · 259da7c
1 parent 77ca931
commit 259da7c
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/Cython/Compiler/Code.py b/Cython/Compiler/Code.py
@@ -439,6 +439,10 @@ def __str__(self):
     def get_tree(self, **kwargs):
         pass
 
+    def __deepcopy__(self, memodict=None):
+        # No need to deep-copy utility code since it's essentially immutable.
+        return self
+
 
 class UtilityCode(UtilityCodeBase):
     """