Merge pull request #412 from groutr/faster_assoc

More efficient assoc
pytoolz · Oct 8, 2018 · 062786a · 062786a
2 parents 68d8df8 + eb26030
commit 062786a
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/toolz/dicttoolz.py b/toolz/dicttoolz.py
@@ -192,8 +192,9 @@ def assoc(d, key, value, factory=dict):
     {'x': 1, 'y': 3}
     """
     d2 = factory()
+    d2.update(d)
     d2[key] = value
-    return merge(d, d2, factory=factory)
+    return d2
 
 
 def dissoc(d, *keys):