Test against Python 3.14 (#2864)

* Test against Python 3.14

* Handle new error message in newer python

* Add back py313 to tox

Author: sloria

.github/workflows/build-release.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: "3.13"
+          python-version: "3.14"
       - run: pip install tox
       - run: tox -e docs
   tests:
@@ -24,7 +24,7 @@ jobs:
       matrix:
         include:
           - { name: "3.10", python: "3.10", tox: py310 }
-          - { name: "3.13", python: "3.13", tox: py313 }
+          - { name: "3.14", python: "3.14", tox: py314 }
           - { name: "mypy", python: "3.13", tox: mypy }
     steps:
       - uses: actions/checkout@v5
@@ -41,7 +41,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: "3.13"
+          python-version: "3.14"
       - name: Install pypa/build
         run: python -m pip install build
       - name: Build a binary wheel and a source tarball
@@ -64,7 +64,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: "3.13"
+          python-version: "3.14"
       - run: python -m pip install tox
       - run: python -m tox -e lint
   publish-to-pypi:

CHANGELOG.rst

@@ -7,6 +7,8 @@ Changelog
 Other changes:
 
 - Drop support for Python 3.9 (:pr:`2363`).
+- Test against Python 3.14.
+
 
 4.0.1 (2025-08-28)
 ++++++++++++++++++

pyproject.toml

@@ -19,6 +19,7 @@ classifiers = [
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
 ]
 requires-python = ">=3.10"
 dependencies = [

tests/test_utils.py

@@ -124,7 +124,7 @@ def test_from_timestamp_with_negative_value():
 
 def test_from_timestamp_with_overflow_value():
     value = 9223372036854775
-    with pytest.raises(ValueError, match="out of range"):
+    with pytest.raises(ValueError, match=r"out of range|year must be in 1\.\.9999"):
         utils.from_timestamp(value)
 
 

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = lint,mypy,py{310,311,312,313},docs
+envlist = lint,mypy,py{310,311,312,313,314},docs
 
 [testenv]
 extras = tests