From 0b91db909186b3762f6ee68ef3115bdb6b56573b Mon Sep 17 00:00:00 2001
From: anthony sottile <asottile@umich.edu>
Date: Wed, 15 Oct 2025 14:02:21 -0400
Subject: [PATCH] py310+

---
 .github/workflows/main.yml | 12 ++++++------
 .pre-commit-config.yaml    | 10 +++++-----
 pycodestyle.py             | 19 +------------------
 setup.cfg                  |  2 +-
 tests/test_api.py          |  7 +------
 5 files changed, 14 insertions(+), 36 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c53a94f7..75fc886a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -11,14 +11,11 @@ jobs:
       matrix:
         include:
         - os: windows-latest
-          py: 3.9
+          py: '3.10'
           toxenv: py
         - os: ubuntu-latest
           py: pypy3.10
           toxenv: py
-        - os: ubuntu-latest
-          py: 3.9
-          toxenv: py
         - os: ubuntu-latest
           py: '3.10'
           toxenv: py
@@ -32,10 +29,13 @@ jobs:
           py: '3.13'
           toxenv: py
         - os: ubuntu-latest
-          py: '3.14-dev'
+          py: '3.14'
           toxenv: py
         - os: ubuntu-latest
-          py: 3.9
+          py: '3.15-dev'
+          toxenv: py
+        - os: ubuntu-latest
+          py: '3.10'
           toxenv: flake8
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 66058378..1c698753 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -8,17 +8,17 @@ repos:
     -   id: end-of-file-fixer
     -   id: trailing-whitespace
 -   repo: https://github.com/asottile/reorder-python-imports
-    rev: v3.15.0
+    rev: v3.16.0
     hooks:
     -   id: reorder-python-imports
-        args: [--py39-plus]
+        args: [--py310-plus]
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v3.20.0
+    rev: v3.21.0
     hooks:
     -   id: pyupgrade
-        args: [--py39-plus]
+        args: [--py310-plus]
 -   repo: https://github.com/asottile/setup-cfg-fmt
-    rev: v2.8.0
+    rev: v3.1.0
     hooks:
     -   id: setup-cfg-fmt
 -   repo: https://github.com/pycqa/flake8
diff --git a/pycodestyle.py b/pycodestyle.py
index b3bf4ffc..868e79d5 100755
--- a/pycodestyle.py
+++ b/pycodestyle.py
@@ -59,15 +59,9 @@
 import warnings
 from fnmatch import fnmatch
 from functools import lru_cache
+from itertools import pairwise
 from optparse import OptionParser
 
-# this is a performance hack.  see https://bugs.python.org/issue43014
-if (
-        sys.version_info < (3, 10) and
-        callable(getattr(tokenize, '_compile', None))
-):  # pragma: no cover (<py310)
-    tokenize._compile = lru_cache(tokenize._compile)  # type: ignore
-
 __version__ = '2.14.0'
 
 DEFAULT_EXCLUDE = '.svn,CVS,.bzr,.hg,.git,__pycache__,.tox'
@@ -493,17 +487,6 @@ def whitespace_around_keywords(logical_line):
             yield match.start(2), "E271 multiple spaces after keyword"
 
 
-if sys.version_info < (3, 10):
-    from itertools import tee
-
-    def pairwise(iterable):
-        a, b = tee(iterable)
-        next(b, None)
-        return zip(a, b)
-else:
-    from itertools import pairwise
-
-
 @register_check
 def missing_whitespace_after_keyword(logical_line, tokens):
     r"""Keywords should be followed by whitespace.
diff --git a/setup.cfg b/setup.cfg
index 7565ec63..e2bd7c0f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -28,7 +28,7 @@ project_urls =
 
 [options]
 py_modules = pycodestyle
-python_requires = >=3.9
+python_requires = >=3.10
 include_package_data = True
 zip_safe = False
 
diff --git a/tests/test_api.py b/tests/test_api.py
index 32f6ad2a..50cb1b83 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -352,12 +352,7 @@ def test_styleguide_unmatched_triple_quotes(self):
         pep8style.input_file('stdin', lines=lines)
         stdout = sys.stdout.getvalue()
 
-        if sys.version_info < (3, 10):  # pragma: <3.10 cover
-            expected = [
-                'stdin:2:5: E901 TokenError: EOF in multi-line string',
-                'stdin:2:26: E901 SyntaxError: EOF while scanning triple-quoted string literal',  # noqa: E501
-            ]
-        elif sys.version_info < (3, 12):  # pragma: >=3.10 cover  # pragma: <3.12 cover  # noqa: E501
+        if sys.version_info < (3, 12):  # pragma: <3.12 cover  # noqa: E501
             expected = [
                 'stdin:2:5: E901 TokenError: EOF in multi-line string',
                 'stdin:2:6: E901 SyntaxError: unterminated triple-quoted string literal (detected at line 2)',  # noqa: E501