From acaa51cb814894b05a4ac5c770a4d18205a8149b Mon Sep 17 00:00:00 2001
From: donBarbos <donbarbos@proton.me>
Date: Fri, 7 Feb 2025 06:07:30 +0400
Subject: [PATCH 1/8] Improve import time of codeop

---
 Lib/codeop.py                                   | 17 ++++++++++++-----
 ...25-02-07-05-55-08.gh-issue-118761.aayL_A.rst |  2 ++
 2 files changed, 14 insertions(+), 5 deletions(-)
 create mode 100644 Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst

diff --git a/Lib/codeop.py b/Lib/codeop.py
index adf000ba29f88c..e7e4c69e7c0ced 100644
--- a/Lib/codeop.py
+++ b/Lib/codeop.py
@@ -33,7 +33,6 @@
 """
 
 import __future__
-import warnings
 
 _features = [getattr(__future__, fname)
              for fname in __future__.all_feature_names]
@@ -47,15 +46,18 @@
 PyCF_ONLY_AST = 0x400
 PyCF_ALLOW_INCOMPLETE_INPUT = 0x4000
 
+
 def _maybe_compile(compiler, source, filename, symbol):
     # Check for source consisting of only blank lines and comments.
     for line in source.split("\n"):
         line = line.strip()
-        if line and line[0] != '#':
-            break               # Leave it alone.
+        if line and line[0] != "#":
+            break  # Leave it alone.
     else:
         if symbol != "eval":
-            source = "pass"     # Replace it with a 'pass' statement
+            source = "pass"  # Replace it with a 'pass' statement
+
+    import warnings
 
     # Disable compiler warnings when checking for incomplete input.
     with warnings.catch_warnings():
@@ -74,6 +76,7 @@ def _maybe_compile(compiler, source, filename, symbol):
 
     return compiler(source, filename, symbol, incomplete_input=False)
 
+
 def _compile(source, filename, symbol, incomplete_input=True):
     flags = 0
     if incomplete_input:
@@ -81,6 +84,7 @@ def _compile(source, filename, symbol, incomplete_input=True):
         flags |= PyCF_DONT_IMPLY_DEDENT
     return compile(source, filename, symbol, flags)
 
+
 def compile_command(source, filename="<input>", symbol="single"):
     r"""Compile a command and determine whether it is incomplete.
 
@@ -102,17 +106,19 @@ def compile_command(source, filename="<input>", symbol="single"):
     """
     return _maybe_compile(_compile, source, filename, symbol)
 
+
 class Compile:
     """Instances of this class behave much like the built-in compile
     function, but if one is used to compile text containing a future
     statement, it "remembers" and compiles all subsequent program texts
     with the statement in force."""
+
     def __init__(self):
         self.flags = PyCF_DONT_IMPLY_DEDENT | PyCF_ALLOW_INCOMPLETE_INPUT
 
     def __call__(self, source, filename, symbol, flags=0, **kwargs):
         flags |= self.flags
-        if kwargs.get('incomplete_input', True) is False:
+        if kwargs.get("incomplete_input", True) is False:
             flags &= ~PyCF_DONT_IMPLY_DEDENT
             flags &= ~PyCF_ALLOW_INCOMPLETE_INPUT
         codeob = compile(source, filename, symbol, flags, True)
@@ -123,6 +129,7 @@ def __call__(self, source, filename, symbol, flags=0, **kwargs):
                 self.flags |= feature.compiler_flag
         return codeob
 
+
 class CommandCompiler:
     """Instances of this class have __call__ methods identical in
     signature to compile_command; the difference is that if the
diff --git a/Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst b/Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst
new file mode 100644
index 00000000000000..3be037472aede3
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst
@@ -0,0 +1,2 @@
+Improve import time of :mod:`codeop` by lazy import ``warnings``. Patch by
+Semyon Moroz.

From ca2f8bc056752a1ae318d60fc7242703314d4838 Mon Sep 17 00:00:00 2001
From: donBarbos <donbarbos@proton.me>
Date: Fri, 7 Feb 2025 08:04:51 +0400
Subject: [PATCH 2/8] Always lazy import warnings

---
 Lib/ctypes/_layout.py                  |  2 --
 Lib/hmac.py                            | 11 +++++------
 Lib/importlib/_bootstrap_external.py   |  6 +++++-
 Lib/importlib/metadata/__init__.py     |  2 +-
 Lib/importlib/resources/_common.py     |  2 +-
 Lib/importlib/resources/_functional.py |  3 +--
 Lib/importlib/resources/readers.py     |  2 +-
 Lib/logging/__init__.py                |  8 +++++++-
 Lib/pkgutil.py                         |  2 --
 Lib/pydoc.py                           |  7 +++++--
 Lib/rlcompleter.py                     |  5 +++--
 Lib/ssl.py                             |  7 ++++++-
 Lib/tempfile.py                        | 10 ++++++----
 Lib/traceback.py                       |  2 +-
 Lib/urllib/parse.py                    | 13 ++++++++++++-
 Lib/xml/etree/ElementTree.py           |  7 ++++++-
 Lib/zipimport.py                       |  2 +-
 17 files changed, 61 insertions(+), 30 deletions(-)

diff --git a/Lib/ctypes/_layout.py b/Lib/ctypes/_layout.py
index e30db598ab22e1..adda3f9a6f2acc 100644
--- a/Lib/ctypes/_layout.py
+++ b/Lib/ctypes/_layout.py
@@ -5,8 +5,6 @@
 """
 
 import sys
-import warnings
-import struct
 
 from _ctypes import CField, buffer_info
 import ctypes
diff --git a/Lib/hmac.py b/Lib/hmac.py
index 8b4eb2fe741e60..16e88182d69006 100644
--- a/Lib/hmac.py
+++ b/Lib/hmac.py
@@ -3,7 +3,6 @@
 Implements the HMAC algorithm as described by RFC 2104.
 """
 
-import warnings as _warnings
 try:
     import _hashlib as _hashopenssl
 except ImportError:
@@ -31,9 +30,7 @@ class HMAC:
     """
     blocksize = 64  # 512-bit HMAC; can be changed in subclasses.
 
-    __slots__ = (
-        "_hmac", "_inner", "_outer", "block_size", "digest_size"
-    )
+    __slots__ = ("_hmac", "_inner", "_outer", "block_size", "digest_size")
 
     def __init__(self, key, msg=None, digestmod=''):
         """Create a new HMAC object.
@@ -81,15 +78,17 @@ def _init_old(self, key, msg, digestmod):
         self._inner = digest_cons()
         self.digest_size = self._inner.digest_size
 
+        import warnings
+
         if hasattr(self._inner, 'block_size'):
             blocksize = self._inner.block_size
             if blocksize < 16:
-                _warnings.warn('block_size of %d seems too small; using our '
+                warnings.warn('block_size of %d seems too small; using our '
                                'default of %d.' % (blocksize, self.blocksize),
                                RuntimeWarning, 2)
                 blocksize = self.blocksize
         else:
-            _warnings.warn('No block_size attribute on given digest object; '
+            warnings.warn('No block_size attribute on given digest object; '
                            'Assuming %d.' % (self.blocksize),
                            RuntimeWarning, 2)
             blocksize = self.blocksize
diff --git a/Lib/importlib/_bootstrap_external.py b/Lib/importlib/_bootstrap_external.py
index 8bcd741c446bd2..4968ba4c0ef536 100644
--- a/Lib/importlib/_bootstrap_external.py
+++ b/Lib/importlib/_bootstrap_external.py
@@ -26,7 +26,6 @@
 import _imp
 import _io
 import sys
-import _warnings
 import marshal
 
 
@@ -259,6 +258,7 @@ def cache_from_source(path, debug_override=None, *, optimization=None):
 
     """
     if debug_override is not None:
+        import _warnings
         _warnings.warn('the debug_override parameter is deprecated; use '
                        "'optimization' instead", DeprecationWarning)
         if optimization is not None:
@@ -663,6 +663,7 @@ def _bless_my_loader(module_globals):
         if loader is None:
             exc = AttributeError if spec_loader is missing else ValueError
             raise exc('Module globals is missing a __spec__.loader')
+        import _warnings
         _warnings.warn(
             'Module globals is missing a __spec__.loader',
             DeprecationWarning)
@@ -670,6 +671,7 @@ def _bless_my_loader(module_globals):
 
     assert spec_loader is not None
     if loader is not None and loader != spec_loader:
+        import _warnings
         _warnings.warn(
             'Module globals; __loader__ != __spec__.loader',
             DeprecationWarning)
@@ -716,6 +718,7 @@ def _search_registry(cls, fullname):
 
     @classmethod
     def find_spec(cls, fullname, path=None, target=None):
+        import _warnings
         _warnings.warn('importlib.machinery.WindowsRegistryFinder is '
                        'deprecated; use site configuration instead. '
                        'Future versions of Python may not enable this '
@@ -1224,6 +1227,7 @@ def invalidate_caches():
     def _path_hooks(path):
         """Search sys.path_hooks for a finder for 'path'."""
         if sys.path_hooks is not None and not sys.path_hooks:
+            import _warnings
             _warnings.warn('sys.path_hooks is empty', ImportWarning)
         for hook in sys.path_hooks:
             try:
diff --git a/Lib/importlib/metadata/__init__.py b/Lib/importlib/metadata/__init__.py
index 8ce62dd864fc27..8b18df081d2c49 100644
--- a/Lib/importlib/metadata/__init__.py
+++ b/Lib/importlib/metadata/__init__.py
@@ -12,7 +12,6 @@
 import zipfile
 import operator
 import textwrap
-import warnings
 import functools
 import itertools
 import posixpath
@@ -341,6 +340,7 @@ def __new__(cls, *args, **kwargs):
             if getattr(getattr(cls, name), '__isabstractmethod__', False)
         }
         if abstract:
+            import warnings
             warnings.warn(
                 f"Unimplemented abstract methods {abstract}",
                 DeprecationWarning,
diff --git a/Lib/importlib/resources/_common.py b/Lib/importlib/resources/_common.py
index 4e9014c45a056e..d69c21aae2fb85 100644
--- a/Lib/importlib/resources/_common.py
+++ b/Lib/importlib/resources/_common.py
@@ -6,7 +6,6 @@
 import types
 import importlib
 import inspect
-import warnings
 import itertools
 
 from typing import Union, Optional, cast
@@ -35,6 +34,7 @@ def wrapper(anchor=undefined, package=undefined):
         if package is not undefined:
             if anchor is not undefined:
                 return func(anchor, package)
+            import warnings
             warnings.warn(
                 "First parameter to files is renamed to 'anchor'",
                 DeprecationWarning,
diff --git a/Lib/importlib/resources/_functional.py b/Lib/importlib/resources/_functional.py
index f59416f2dd627d..3ce523f560bdcd 100644
--- a/Lib/importlib/resources/_functional.py
+++ b/Lib/importlib/resources/_functional.py
@@ -1,7 +1,5 @@
 """Simplified function-based API for importlib.resources"""
 
-import warnings
-
 from ._common import files, as_file
 
 
@@ -51,6 +49,7 @@ def contents(anchor, *path_names):
     The iterable returns :class:`str` resources (e.g. files).
     The iterable does not recurse into subdirectories.
     """
+    import warnings
     warnings.warn(
         "importlib.resources.contents is deprecated. "
         "Use files(anchor).iterdir() instead.",
diff --git a/Lib/importlib/resources/readers.py b/Lib/importlib/resources/readers.py
index 70fc7e2b9c0145..7ccd45e0f52ebf 100644
--- a/Lib/importlib/resources/readers.py
+++ b/Lib/importlib/resources/readers.py
@@ -6,7 +6,6 @@
 import pathlib
 import operator
 import re
-import warnings
 import zipfile
 from collections.abc import Iterator
 
@@ -194,6 +193,7 @@ def _ensure_traversable(path):
     if not isinstance(path, str):
         return path
 
+    import warnings
     warnings.warn(
         "String arguments are deprecated. Pass a Traversable instead.",
         DeprecationWarning,
diff --git a/Lib/logging/__init__.py b/Lib/logging/__init__.py
index aa9b79d8cab4bb..66b1587978ee63 100644
--- a/Lib/logging/__init__.py
+++ b/Lib/logging/__init__.py
@@ -23,7 +23,7 @@
 To use, simply 'import logging' and log away!
 """
 
-import sys, os, time, io, re, traceback, warnings, weakref, collections.abc
+import sys, os, time, io, re, traceback, weakref, collections.abc
 
 from types import GenericAlias
 from string import Template
@@ -1531,6 +1531,7 @@ def warning(self, msg, *args, **kwargs):
             self._log(WARNING, msg, args, **kwargs)
 
     def warn(self, msg, *args, **kwargs):
+        import warnings
         warnings.warn("The 'warn' method is deprecated, "
             "use 'warning' instead", DeprecationWarning, 2)
         self.warning(msg, *args, **kwargs)
@@ -1912,6 +1913,7 @@ def warning(self, msg, *args, **kwargs):
         self.log(WARNING, msg, *args, **kwargs)
 
     def warn(self, msg, *args, **kwargs):
+        import warnings
         warnings.warn("The 'warn' method is deprecated, "
             "use 'warning' instead", DeprecationWarning, 2)
         self.warning(msg, *args, **kwargs)
@@ -2180,6 +2182,7 @@ def warning(msg, *args, **kwargs):
     root.warning(msg, *args, **kwargs)
 
 def warn(msg, *args, **kwargs):
+    import warnings
     warnings.warn("The 'warn' function is deprecated, "
         "use 'warning' instead", DeprecationWarning, 2)
     warning(msg, *args, **kwargs)
@@ -2299,6 +2302,7 @@ def _showwarning(message, category, filename, lineno, file=None, line=None):
         if _warnings_showwarning is not None:
             _warnings_showwarning(message, category, filename, lineno, file, line)
     else:
+        import warnings
         s = warnings.formatwarning(message, category, filename, lineno, line)
         logger = getLogger("py.warnings")
         if not logger.handlers:
@@ -2316,9 +2320,11 @@ def captureWarnings(capture):
     global _warnings_showwarning
     if capture:
         if _warnings_showwarning is None:
+            import warnings
             _warnings_showwarning = warnings.showwarning
             warnings.showwarning = _showwarning
     else:
         if _warnings_showwarning is not None:
+            import warnings
             warnings.showwarning = _warnings_showwarning
             _warnings_showwarning = None
diff --git a/Lib/pkgutil.py b/Lib/pkgutil.py
index b84d72f2395d45..8772a66791a3c9 100644
--- a/Lib/pkgutil.py
+++ b/Lib/pkgutil.py
@@ -8,8 +8,6 @@
 import os
 import os.path
 import sys
-from types import ModuleType
-import warnings
 
 __all__ = [
     'get_importer', 'iter_importers',
diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index 1839b88fec28b1..fabf1a5552e73e 100644
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -64,14 +64,12 @@ class or function within a module or module in a package.  If the
 import io
 import os
 import pkgutil
-import platform
 import re
 import sys
 import sysconfig
 import time
 import tokenize
 import urllib.parse
-import warnings
 from annotationlib import Format
 from collections import deque
 from reprlib import Repr
@@ -376,6 +374,7 @@ def sort_attributes(attrs, object):
 
 def ispackage(path):
     """Guess whether a path refers to a package directory."""
+    import warnings
     warnings.warn('The pydoc.ispackage() function is deprecated',
                   DeprecationWarning, stacklevel=2)
     if os.path.isdir(path):
@@ -394,6 +393,7 @@ def source_synopsis(file):
             if tok_type == tokenize.STRING:
                 string += tok_string
             elif tok_type == tokenize.NEWLINE:
+                import warnings
                 with warnings.catch_warnings():
                     # Ignore the "invalid escape sequence" warning.
                     warnings.simplefilter("ignore", SyntaxWarning)
@@ -457,6 +457,7 @@ def __init__(self, filename, exc_info):
             self.value = exc_info
             self.tb = exc_info.__traceback__
         else:
+            import warnings
             warnings.warn("A tuple value for exc_info is deprecated, use an exception instance",
                           DeprecationWarning)
 
@@ -2294,6 +2295,7 @@ def callback(path, modname, desc):
         print(modname, desc and '- ' + desc)
     def onerror(modname):
         pass
+    import warnings
     with warnings.catch_warnings():
         warnings.filterwarnings('ignore') # ignore problems during import
         ModuleScanner().run(callback, key, onerror=onerror)
@@ -2543,6 +2545,7 @@ def callback(path, modname, desc):
                 modname = modname[:-9] + ' (package)'
             search_result.append((modname, desc and '- ' + desc))
 
+        import warnings
         with warnings.catch_warnings():
             warnings.filterwarnings('ignore') # ignore problems during import
             def onerror(modname):
diff --git a/Lib/rlcompleter.py b/Lib/rlcompleter.py
index 23eb0020f42e8a..c805fa33764211 100644
--- a/Lib/rlcompleter.py
+++ b/Lib/rlcompleter.py
@@ -35,12 +35,12 @@
 import keyword
 import re
 import __main__
-import warnings
 
 __all__ = ["Completer"]
 
+
 class Completer:
-    def __init__(self, namespace = None):
+    def __init__(self, namespace=None):
         """Create a new completer for the command line.
 
         Completer([namespace]) -> completer instance.
@@ -89,6 +89,7 @@ def complete(self, text, state):
                 return None
 
         if state == 0:
+            import warnings
             with warnings.catch_warnings(action="ignore"):
                 if "." in text:
                     self.matches = self.attr_matches(text)
diff --git a/Lib/ssl.py b/Lib/ssl.py
index 05df4ad7f0f05c..53e1afbf8bad55 100644
--- a/Lib/ssl.py
+++ b/Lib/ssl.py
@@ -262,7 +262,6 @@ class _TLSMessageType:
 import socket as _socket
 import base64        # for DER-to-PEM translation
 import errno
-import warnings
 
 
 socket_error = OSError  # keep that public name in module namespace
@@ -429,6 +428,7 @@ class SSLContext(_SSLContext):
 
     def __new__(cls, protocol=None, *args, **kwargs):
         if protocol is None:
+            import warnings
             warnings.warn(
                 "ssl.SSLContext() without protocol argument is deprecated.",
                 category=DeprecationWarning,
@@ -473,6 +473,7 @@ def wrap_bio(self, incoming, outgoing, server_side=False,
         )
 
     def set_npn_protocols(self, npn_protocols):
+        import warnings
         warnings.warn(
             "ssl NPN is deprecated, use ALPN instead",
             DeprecationWarning,
@@ -521,8 +522,10 @@ def _load_windows_store_certs(self, storename, purpose):
                         try:
                             self.load_verify_locations(cadata=cert)
                         except SSLError as exc:
+                            import warnings
                             warnings.warn(f"Bad certificate in Windows certificate store: {exc!s}")
         except PermissionError:
+            import warnings
             warnings.warn("unable to enumerate Windows certificate store")
 
     def load_default_certs(self, purpose=Purpose.SERVER_AUTH):
@@ -914,6 +917,7 @@ def selected_npn_protocol(self):
         """Return the currently selected NPN protocol as a string, or ``None``
         if a next protocol was not negotiated or if NPN is not supported by one
         of the peers."""
+        import warnings
         warnings.warn(
             "ssl NPN is deprecated, use ALPN instead",
             DeprecationWarning,
@@ -1183,6 +1187,7 @@ def get_unverified_chain(self):
     @_sslcopydoc
     def selected_npn_protocol(self):
         self._checkClosed()
+        import warnings
         warnings.warn(
             "ssl NPN is deprecated, use ALPN instead",
             DeprecationWarning,
diff --git a/Lib/tempfile.py b/Lib/tempfile.py
index 0eb9ddeb6ac377..dc13bf5acdf276 100644
--- a/Lib/tempfile.py
+++ b/Lib/tempfile.py
@@ -37,7 +37,6 @@
 # Imports.
 
 import functools as _functools
-import warnings as _warnings
 import io as _io
 import os as _os
 import shutil as _shutil
@@ -480,7 +479,8 @@ def __del__(self):
         close_called = self.close_called
         self.cleanup()
         if not close_called:
-            _warnings.warn(self.warn_message, ResourceWarning)
+            import warnings
+            warnings.warn(self.warn_message, ResourceWarning)
 
 
 class _TemporaryFileWrapper:
@@ -769,7 +769,8 @@ def __iter__(self):
 
     def __del__(self):
         if not self.closed:
-            _warnings.warn(
+            import warnings
+            warnings.warn(
                 "Unclosed file {!r}".format(self),
                 ResourceWarning,
                 stacklevel=2,
@@ -953,7 +954,8 @@ def onexc(func, path, exc):
     def _cleanup(cls, name, warn_message, ignore_errors=False, delete=True):
         if delete:
             cls._rmtree(name, ignore_errors=ignore_errors)
-            _warnings.warn(warn_message, ResourceWarning)
+            import warnings
+            warnings.warn(warn_message, ResourceWarning)
 
     def __repr__(self):
         return "<{} {!r}>".format(self.__class__.__name__, self.name)
diff --git a/Lib/traceback.py b/Lib/traceback.py
index 31c73efcef5a52..fe155c5f6677dd 100644
--- a/Lib/traceback.py
+++ b/Lib/traceback.py
@@ -5,7 +5,6 @@
 import linecache
 import sys
 import textwrap
-import warnings
 from contextlib import suppress
 import _colorize
 from _colorize import ANSIColors
@@ -1178,6 +1177,7 @@ def from_exception(cls, exc, *args, **kwargs):
 
     @property
     def exc_type(self):
+        import warnings
         warnings.warn('Deprecated in 3.13. Use exc_type_str instead.',
                       DeprecationWarning, stacklevel=2)
         return self._exc_type
diff --git a/Lib/urllib/parse.py b/Lib/urllib/parse.py
index 9d51f4c6812b57..01079591e10a59 100644
--- a/Lib/urllib/parse.py
+++ b/Lib/urllib/parse.py
@@ -36,7 +36,6 @@
 import math
 import re
 import types
-import warnings
 import ipaddress
 
 __all__ = ["urlparse", "urlunparse", "urljoin", "urldefrag",
@@ -825,6 +824,7 @@ def _unquote(s):
             qs = bytes(memoryview(qs))
         except TypeError:
             if not qs:
+                import warnings
                 warnings.warn(f"Accepting {type(qs).__name__} objects with "
                               f"false value in urllib.parse.parse_qsl() is "
                               f"deprecated as of 3.14",
@@ -1081,6 +1081,7 @@ def urlencode(query, doseq=False, safe='', encoding=None, errors=None,
 
 
 def to_bytes(url):
+    import warnings
     warnings.warn("urllib.parse.to_bytes() is deprecated as of 3.8",
                   DeprecationWarning, stacklevel=2)
     return _to_bytes(url)
@@ -1114,6 +1115,7 @@ def unwrap(url):
 
 
 def splittype(url):
+    import warnings
     warnings.warn("urllib.parse.splittype() is deprecated as of 3.8, "
                   "use urllib.parse.urlparse() instead",
                   DeprecationWarning, stacklevel=2)
@@ -1135,6 +1137,7 @@ def _splittype(url):
 
 
 def splithost(url):
+    import warnings
     warnings.warn("urllib.parse.splithost() is deprecated as of 3.8, "
                   "use urllib.parse.urlparse() instead",
                   DeprecationWarning, stacklevel=2)
@@ -1158,6 +1161,7 @@ def _splithost(url):
 
 
 def splituser(host):
+    import warnings
     warnings.warn("urllib.parse.splituser() is deprecated as of 3.8, "
                   "use urllib.parse.urlparse() instead",
                   DeprecationWarning, stacklevel=2)
@@ -1171,6 +1175,7 @@ def _splituser(host):
 
 
 def splitpasswd(user):
+    import warnings
     warnings.warn("urllib.parse.splitpasswd() is deprecated as of 3.8, "
                   "use urllib.parse.urlparse() instead",
                   DeprecationWarning, stacklevel=2)
@@ -1184,6 +1189,7 @@ def _splitpasswd(user):
 
 
 def splitport(host):
+    import warnings
     warnings.warn("urllib.parse.splitport() is deprecated as of 3.8, "
                   "use urllib.parse.urlparse() instead",
                   DeprecationWarning, stacklevel=2)
@@ -1207,6 +1213,7 @@ def _splitport(host):
 
 
 def splitnport(host, defport=-1):
+    import warnings
     warnings.warn("urllib.parse.splitnport() is deprecated as of 3.8, "
                   "use urllib.parse.urlparse() instead",
                   DeprecationWarning, stacklevel=2)
@@ -1231,6 +1238,7 @@ def _splitnport(host, defport=-1):
 
 
 def splitquery(url):
+    import warnings
     warnings.warn("urllib.parse.splitquery() is deprecated as of 3.8, "
                   "use urllib.parse.urlparse() instead",
                   DeprecationWarning, stacklevel=2)
@@ -1246,6 +1254,7 @@ def _splitquery(url):
 
 
 def splittag(url):
+    import warnings
     warnings.warn("urllib.parse.splittag() is deprecated as of 3.8, "
                   "use urllib.parse.urlparse() instead",
                   DeprecationWarning, stacklevel=2)
@@ -1261,6 +1270,7 @@ def _splittag(url):
 
 
 def splitattr(url):
+    import warnings
     warnings.warn("urllib.parse.splitattr() is deprecated as of 3.8, "
                   "use urllib.parse.urlparse() instead",
                   DeprecationWarning, stacklevel=2)
@@ -1275,6 +1285,7 @@ def _splitattr(url):
 
 
 def splitvalue(attr):
+    import warnings
     warnings.warn("urllib.parse.splitvalue() is deprecated as of 3.8, "
                   "use urllib.parse.parse_qsl() instead",
                   DeprecationWarning, stacklevel=2)
diff --git a/Lib/xml/etree/ElementTree.py b/Lib/xml/etree/ElementTree.py
index ce67d7d7d54748..8ce589fe875b79 100644
--- a/Lib/xml/etree/ElementTree.py
+++ b/Lib/xml/etree/ElementTree.py
@@ -94,7 +94,6 @@
 
 import sys
 import re
-import warnings
 import io
 import collections
 import collections.abc
@@ -200,6 +199,7 @@ def __len__(self):
         return len(self._children)
 
     def __bool__(self):
+        import warnings
         warnings.warn(
             "Testing an element's truth value will always return True in "
             "future versions.  "
@@ -602,6 +602,7 @@ def find(self, path, namespaces=None):
         # assert self._root is not None
         if path[:1] == "/":
             path = "." + path
+            import warnings
             warnings.warn(
                 "This search is broken in 1.3 and earlier, and will be "
                 "fixed in a future version.  If you rely on the current "
@@ -624,6 +625,7 @@ def findtext(self, path, default=None, namespaces=None):
         # assert self._root is not None
         if path[:1] == "/":
             path = "." + path
+            import warnings
             warnings.warn(
                 "This search is broken in 1.3 and earlier, and will be "
                 "fixed in a future version.  If you rely on the current "
@@ -646,6 +648,7 @@ def findall(self, path, namespaces=None):
         # assert self._root is not None
         if path[:1] == "/":
             path = "." + path
+            import warnings
             warnings.warn(
                 "This search is broken in 1.3 and earlier, and will be "
                 "fixed in a future version.  If you rely on the current "
@@ -668,6 +671,7 @@ def iterfind(self, path, namespaces=None):
         # assert self._root is not None
         if path[:1] == "/":
             path = "." + path
+            import warnings
             warnings.warn(
                 "This search is broken in 1.3 and earlier, and will be "
                 "fixed in a future version.  If you rely on the current "
@@ -1700,6 +1704,7 @@ def _default(self, text):
                 if hasattr(self.target, "doctype"):
                     self.target.doctype(name, pubid, system[1:-1])
                 elif hasattr(self, "doctype"):
+                    import warnings
                     warnings.warn(
                         "The doctype() method of XMLParser is ignored.  "
                         "Define doctype() method on the TreeBuilder target.",
diff --git a/Lib/zipimport.py b/Lib/zipimport.py
index e5192c4d074c4b..2054f0a46c64ef 100644
--- a/Lib/zipimport.py
+++ b/Lib/zipimport.py
@@ -20,7 +20,6 @@
 import marshal  # for loads
 import sys  # for modules
 import time  # for mktime
-import _warnings  # For warn()
 
 __all__ = ['ZipImportError', 'zipimporter']
 
@@ -223,6 +222,7 @@ def load_module(self, fullname):
         """
         msg = ("zipimport.zipimporter.load_module() is deprecated and slated for "
                "removal in Python 3.12; use exec_module() instead")
+        import _warnings
         _warnings.warn(msg, DeprecationWarning)
         code, ispackage, modpath = _get_module_code(self, fullname)
         mod = sys.modules.get(fullname)

From f88c5b15a967e1a93d0af49d1fc1b8ba518c33cc Mon Sep 17 00:00:00 2001
From: donBarbos <donbarbos@proton.me>
Date: Fri, 7 Feb 2025 04:45:08 +0000
Subject: [PATCH 3/8] Update
 Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst

Co-authored-by: Wulian233 <1055917385@qq.com>
---
 .../next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst b/Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst
index 3be037472aede3..04da69d2147177 100644
--- a/Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst
+++ b/Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst
@@ -1,2 +1,2 @@
-Improve import time of :mod:`codeop` by lazy import ``warnings``. Patch by
+Improve import time of various stdlib by lazy import ``warnings``. Patch by
 Semyon Moroz.

From f1f77a57b67ab0c16de2e46c9cfeb0af1f2f22b9 Mon Sep 17 00:00:00 2001
From: donBarbos <donbarbos@proton.me>
Date: Fri, 7 Feb 2025 08:50:45 +0400
Subject: [PATCH 4/8] Correct my mistake

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

diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index fabf1a5552e73e..52712ef9034ade 100644
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -64,6 +64,7 @@ class or function within a module or module in a package.  If the
 import io
 import os
 import pkgutil
+import platform
 import re
 import sys
 import sysconfig

From 6210539e3c3b12c636b82b938cf84fe010ea860c Mon Sep 17 00:00:00 2001
From: donBarbos <donbarbos@proton.me>
Date: Fri, 7 Feb 2025 14:17:53 +0400
Subject: [PATCH 5/8] Update 2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst

Co-authored-by: Vinay Sajip <vinay_sajip@yahoo.co.uk>
---
 .../next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst b/Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst
index 04da69d2147177..1c57361385c42a 100644
--- a/Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst
+++ b/Misc/NEWS.d/next/Library/2025-02-07-05-55-08.gh-issue-118761.aayL_A.rst
@@ -1,2 +1,2 @@
-Improve import time of various stdlib by lazy import ``warnings``. Patch by
+Improve import time of various stdlib modules by lazy import ``warnings``. Patch by
 Semyon Moroz.

From 212a25fe865ea3c6c4fa622dc8d1d6b28450aaf4 Mon Sep 17 00:00:00 2001
From: donBarbos <donbarbos@proton.me>
Date: Fri, 7 Feb 2025 19:59:22 +0400
Subject: [PATCH 6/8] Revert changing styles

---
 Lib/codeop.py | 7 +++----
 Lib/hmac.py   | 4 +++-
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/Lib/codeop.py b/Lib/codeop.py
index e7e4c69e7c0ced..d608790c10a569 100644
--- a/Lib/codeop.py
+++ b/Lib/codeop.py
@@ -46,16 +46,15 @@
 PyCF_ONLY_AST = 0x400
 PyCF_ALLOW_INCOMPLETE_INPUT = 0x4000
 
-
 def _maybe_compile(compiler, source, filename, symbol):
     # Check for source consisting of only blank lines and comments.
     for line in source.split("\n"):
         line = line.strip()
-        if line and line[0] != "#":
-            break  # Leave it alone.
+        if line and line[0] != '#':
+            break               # Leave it alone.
     else:
         if symbol != "eval":
-            source = "pass"  # Replace it with a 'pass' statement
+            source = "pass"     # Replace it with a 'pass' statement
 
     import warnings
 
diff --git a/Lib/hmac.py b/Lib/hmac.py
index 16e88182d69006..98c7301597ea49 100644
--- a/Lib/hmac.py
+++ b/Lib/hmac.py
@@ -30,7 +30,9 @@ class HMAC:
     """
     blocksize = 64  # 512-bit HMAC; can be changed in subclasses.
 
-    __slots__ = ("_hmac", "_inner", "_outer", "block_size", "digest_size")
+    __slots__ = (
+        "_hmac", "_inner", "_outer", "block_size", "digest_size"
+    )
 
     def __init__(self, key, msg=None, digestmod=''):
         """Create a new HMAC object.

From e976ca07c6c86b29145627e979fb600953ca88ce Mon Sep 17 00:00:00 2001
From: donBarbos <donbarbos@proton.me>
Date: Fri, 7 Feb 2025 20:04:45 +0400
Subject: [PATCH 7/8] Revert more

---
 Lib/codeop.py      | 7 +------
 Lib/rlcompleter.py | 3 +--
 2 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/Lib/codeop.py b/Lib/codeop.py
index d608790c10a569..41136e998530c9 100644
--- a/Lib/codeop.py
+++ b/Lib/codeop.py
@@ -75,7 +75,6 @@ def _maybe_compile(compiler, source, filename, symbol):
 
     return compiler(source, filename, symbol, incomplete_input=False)
 
-
 def _compile(source, filename, symbol, incomplete_input=True):
     flags = 0
     if incomplete_input:
@@ -83,7 +82,6 @@ def _compile(source, filename, symbol, incomplete_input=True):
         flags |= PyCF_DONT_IMPLY_DEDENT
     return compile(source, filename, symbol, flags)
 
-
 def compile_command(source, filename="<input>", symbol="single"):
     r"""Compile a command and determine whether it is incomplete.
 
@@ -105,19 +103,17 @@ def compile_command(source, filename="<input>", symbol="single"):
     """
     return _maybe_compile(_compile, source, filename, symbol)
 
-
 class Compile:
     """Instances of this class behave much like the built-in compile
     function, but if one is used to compile text containing a future
     statement, it "remembers" and compiles all subsequent program texts
     with the statement in force."""
-
     def __init__(self):
         self.flags = PyCF_DONT_IMPLY_DEDENT | PyCF_ALLOW_INCOMPLETE_INPUT
 
     def __call__(self, source, filename, symbol, flags=0, **kwargs):
         flags |= self.flags
-        if kwargs.get("incomplete_input", True) is False:
+        if kwargs.get('incomplete_input', True) is False:
             flags &= ~PyCF_DONT_IMPLY_DEDENT
             flags &= ~PyCF_ALLOW_INCOMPLETE_INPUT
         codeob = compile(source, filename, symbol, flags, True)
@@ -128,7 +124,6 @@ def __call__(self, source, filename, symbol, flags=0, **kwargs):
                 self.flags |= feature.compiler_flag
         return codeob
 
-
 class CommandCompiler:
     """Instances of this class have __call__ methods identical in
     signature to compile_command; the difference is that if the
diff --git a/Lib/rlcompleter.py b/Lib/rlcompleter.py
index c805fa33764211..88e3c19910ab1d 100644
--- a/Lib/rlcompleter.py
+++ b/Lib/rlcompleter.py
@@ -38,9 +38,8 @@
 
 __all__ = ["Completer"]
 
-
 class Completer:
-    def __init__(self, namespace=None):
+    def __init__(self, namespace = None):
         """Create a new completer for the command line.
 
         Completer([namespace]) -> completer instance.

From 3e7f0ad43314ad38ac527b333d7c78cae5a3e2bc Mon Sep 17 00:00:00 2001
From: donBarbos <donbarbos@proton.me>
Date: Wed, 12 Feb 2025 23:23:03 +0400
Subject: [PATCH 8/8] Add suggestions

---
 Lib/hmac.py                          | 4 ++--
 Lib/importlib/_bootstrap_external.py | 6 +-----
 Lib/zipimport.py                     | 2 +-
 3 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/Lib/hmac.py b/Lib/hmac.py
index 98c7301597ea49..0577c151b6583c 100644
--- a/Lib/hmac.py
+++ b/Lib/hmac.py
@@ -86,8 +86,8 @@ def _init_old(self, key, msg, digestmod):
             blocksize = self._inner.block_size
             if blocksize < 16:
                 warnings.warn('block_size of %d seems too small; using our '
-                               'default of %d.' % (blocksize, self.blocksize),
-                               RuntimeWarning, 2)
+                              'default of %d.' % (blocksize, self.blocksize),
+                              RuntimeWarning, 2)
                 blocksize = self.blocksize
         else:
             warnings.warn('No block_size attribute on given digest object; '
diff --git a/Lib/importlib/_bootstrap_external.py b/Lib/importlib/_bootstrap_external.py
index 4968ba4c0ef536..8bcd741c446bd2 100644
--- a/Lib/importlib/_bootstrap_external.py
+++ b/Lib/importlib/_bootstrap_external.py
@@ -26,6 +26,7 @@
 import _imp
 import _io
 import sys
+import _warnings
 import marshal
 
 
@@ -258,7 +259,6 @@ def cache_from_source(path, debug_override=None, *, optimization=None):
 
     """
     if debug_override is not None:
-        import _warnings
         _warnings.warn('the debug_override parameter is deprecated; use '
                        "'optimization' instead", DeprecationWarning)
         if optimization is not None:
@@ -663,7 +663,6 @@ def _bless_my_loader(module_globals):
         if loader is None:
             exc = AttributeError if spec_loader is missing else ValueError
             raise exc('Module globals is missing a __spec__.loader')
-        import _warnings
         _warnings.warn(
             'Module globals is missing a __spec__.loader',
             DeprecationWarning)
@@ -671,7 +670,6 @@ def _bless_my_loader(module_globals):
 
     assert spec_loader is not None
     if loader is not None and loader != spec_loader:
-        import _warnings
         _warnings.warn(
             'Module globals; __loader__ != __spec__.loader',
             DeprecationWarning)
@@ -718,7 +716,6 @@ def _search_registry(cls, fullname):
 
     @classmethod
     def find_spec(cls, fullname, path=None, target=None):
-        import _warnings
         _warnings.warn('importlib.machinery.WindowsRegistryFinder is '
                        'deprecated; use site configuration instead. '
                        'Future versions of Python may not enable this '
@@ -1227,7 +1224,6 @@ def invalidate_caches():
     def _path_hooks(path):
         """Search sys.path_hooks for a finder for 'path'."""
         if sys.path_hooks is not None and not sys.path_hooks:
-            import _warnings
             _warnings.warn('sys.path_hooks is empty', ImportWarning)
         for hook in sys.path_hooks:
             try:
diff --git a/Lib/zipimport.py b/Lib/zipimport.py
index 2054f0a46c64ef..e5192c4d074c4b 100644
--- a/Lib/zipimport.py
+++ b/Lib/zipimport.py
@@ -20,6 +20,7 @@
 import marshal  # for loads
 import sys  # for modules
 import time  # for mktime
+import _warnings  # For warn()
 
 __all__ = ['ZipImportError', 'zipimporter']
 
@@ -222,7 +223,6 @@ def load_module(self, fullname):
         """
         msg = ("zipimport.zipimporter.load_module() is deprecated and slated for "
                "removal in Python 3.12; use exec_module() instead")
-        import _warnings
         _warnings.warn(msg, DeprecationWarning)
         code, ispackage, modpath = _get_module_code(self, fullname)
         mod = sys.modules.get(fullname)

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