From e994e028cf18efab8c4d42b6279aac49bc87479b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?B=C3=A9n=C3=A9dikt=20Tran?=
 <10796600+picnixz@users.noreply.github.com>
Date: Fri, 10 Jan 2025 13:33:49 +0100
Subject: [PATCH 1/5] Improve import time of the `pickle` module.

Importing `pickle` is now roughly 25% faster.

Importing the `re` module is no longer needed and
thus is no more implicitly exposed as `pickle.re`.
---
 Lib/pickle.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Lib/pickle.py b/Lib/pickle.py
index 1920973e3f83e9..41dcfac24993d6 100644
--- a/Lib/pickle.py
+++ b/Lib/pickle.py
@@ -31,7 +31,6 @@
 import sys
 from sys import maxsize
 from struct import pack, unpack
-import re
 import io
 import codecs
 import _compat_pickle
@@ -188,8 +187,10 @@ def __init__(self, value):
 NEXT_BUFFER      = b'\x97'  # push next out-of-band buffer
 READONLY_BUFFER  = b'\x98'  # make top of stack readonly
 
-__all__.extend([x for x in dir() if re.match("[A-Z][A-Z0-9_]+$", x)])
-
+__all__.extend([
+    x for x in dir()
+    if x.isupper() and x.isidentifier() and not x.startswith('_')
+])
 
 class _Framer:
 

From 6ce778552e04ecdaae92fb73e694eaa3278e6897 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?B=C3=A9n=C3=A9dikt=20Tran?=
 <10796600+picnixz@users.noreply.github.com>
Date: Fri, 10 Jan 2025 13:34:36 +0100
Subject: [PATCH 2/5] blurb

---
 .../next/Library/2025-01-10-13-34-33.gh-issue-118761.qRB8nS.rst | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Library/2025-01-10-13-34-33.gh-issue-118761.qRB8nS.rst

diff --git a/Misc/NEWS.d/next/Library/2025-01-10-13-34-33.gh-issue-118761.qRB8nS.rst b/Misc/NEWS.d/next/Library/2025-01-10-13-34-33.gh-issue-118761.qRB8nS.rst
new file mode 100644
index 00000000000000..9bc3530aa06ea3
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-01-10-13-34-33.gh-issue-118761.qRB8nS.rst
@@ -0,0 +1,2 @@
+Improve import time of :mod:`pickle` by 25% by removing an un-necessary
+import to :mod:`re`. Patch by Bénédikt Tran.

From 2b7bfd993c103f79891dbe319d14f0d4875dce8b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?B=C3=A9n=C3=A9dikt=20Tran?=
 <10796600+picnixz@users.noreply.github.com>
Date: Sun, 12 Jan 2025 19:11:19 +0100
Subject: [PATCH 3/5] Simplify `__all__` extension

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
---
 Lib/pickle.py | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/Lib/pickle.py b/Lib/pickle.py
index 41dcfac24993d6..9d195888f8a977 100644
--- a/Lib/pickle.py
+++ b/Lib/pickle.py
@@ -187,10 +187,7 @@ def __init__(self, value):
 NEXT_BUFFER      = b'\x97'  # push next out-of-band buffer
 READONLY_BUFFER  = b'\x98'  # make top of stack readonly
 
-__all__.extend([
-    x for x in dir()
-    if x.isupper() and x.isidentifier() and not x.startswith('_')
-])
+__all__.extend(x for x in dir() if x.isupper() and not x.startswith('_'))
 
 class _Framer:
 

From 4063875b8807a73804073d26158247660e38c5cf Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Date: Sun, 12 Jan 2025 18:21:33 +0000
Subject: [PATCH 4/5] PEP 8 (whitespace)

---
 Lib/pickle.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Lib/pickle.py b/Lib/pickle.py
index 9d195888f8a977..8afb4aa4285f37 100644
--- a/Lib/pickle.py
+++ b/Lib/pickle.py
@@ -189,6 +189,7 @@ def __init__(self, value):
 
 __all__.extend(x for x in dir() if x.isupper() and not x.startswith('_'))
 
+
 class _Framer:
 
     _FRAME_SIZE_MIN = 4

From 17242dd6c28d2543eb4236f8ba4640a004c8a087 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?B=C3=A9n=C3=A9dikt=20Tran?=
 <10796600+picnixz@users.noreply.github.com>
Date: Tue, 14 Jan 2025 11:36:54 +0100
Subject: [PATCH 5/5] update NEWS

---
 .../Library/2025-01-10-13-34-33.gh-issue-118761.qRB8nS.rst   | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Misc/NEWS.d/next/Library/2025-01-10-13-34-33.gh-issue-118761.qRB8nS.rst b/Misc/NEWS.d/next/Library/2025-01-10-13-34-33.gh-issue-118761.qRB8nS.rst
index 9bc3530aa06ea3..a0a0f891ca55d9 100644
--- a/Misc/NEWS.d/next/Library/2025-01-10-13-34-33.gh-issue-118761.qRB8nS.rst
+++ b/Misc/NEWS.d/next/Library/2025-01-10-13-34-33.gh-issue-118761.qRB8nS.rst
@@ -1,2 +1,3 @@
-Improve import time of :mod:`pickle` by 25% by removing an un-necessary
-import to :mod:`re`. Patch by Bénédikt Tran.
+Improve import time of :mod:`pickle` by 25% by removing an unnecessary
+regular expression. As such, :mod:`re` is no more implicitly available
+as ``pickle.re``. Patch by Bénédikt Tran.