python
diff --git a/‎Lib/pdb.py‎
Lines changed: 1 addition & 1 deletion b/‎Lib/pdb.py‎
Lines changed: 1 addition & 1 deletion
diff --git a/‎Misc/NEWS.d/next/Windows/2025-12-25-00-38-20.gh-issue-143082.CYUeux.rst‎
Lines changed: 1 addition & 0 deletions b/‎Misc/NEWS.d/next/Windows/2025-12-25-00-38-20.gh-issue-143082.CYUeux.rst‎
Lines changed: 1 addition & 0 deletions
@@ -364,7 +364,7 @@ def __init__(self, completekey='tab', stdin=None, stdout=None, skip=None,
         bdb.Bdb.__init__(self, skip=skip, backend=backend if backend else get_default_backend())
         cmd.Cmd.__init__(self, completekey, stdin, stdout)
         sys.audit("pdb.Pdb")
-        if stdin:
+        if stdin is not None and stdin is not sys.stdin:
             self.use_rawinput = False
         self.prompt = '(Pdb) '
         self.aliases = {}
 
@@ -0,0 +1 @@
+Fix :mod:`pdb` arrow key history not working when ``stdin`` is ``sys.stdin``.
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	+Fix :mod:`pdb` arrow key history not working when ``stdin`` is ``sys.stdin``.