python
diff --git a/‎Lib/copy.py‎
Lines changed: 1 addition & 1 deletion b/‎Lib/copy.py‎
Lines changed: 1 addition & 1 deletion
diff --git a/‎Misc/ACKS‎
Lines changed: 1 addition & 0 deletions b/‎Misc/ACKS‎
Lines changed: 1 addition & 0 deletions
diff --git a/‎Misc/NEWS.d/next/Library/2026-01-05-12-20-42.gh-issue-143445.rgxnbL.rst‎
Lines changed: 1 addition & 0 deletions b/‎Misc/NEWS.d/next/Library/2026-01-05-12-20-42.gh-issue-143445.rgxnbL.rst‎
Lines changed: 1 addition & 0 deletions
@@ -230,7 +230,7 @@ def _reconstruct(x, memo, func, args,
                  *, deepcopy=deepcopy):
     deep = memo is not None
     if deep and args:
-        args = (deepcopy(arg, memo) for arg in args)
+        args = [deepcopy(arg, memo) for arg in args]
     y = func(*args)
     if deep:
         memo[id(x)] = y
 
@@ -1931,6 +1931,7 @@ James Tocknell
 Bennett Todd
 R Lindsay Todd
 Eugene Toder
+Heikki Toivonen
 Erik Tollerud
 Stephen Tonkin
 Matias Torchinsky
 
@@ -0,0 +1 @@
+Speed up :func:`copy.deepcopy` by 1.04x.