chore(python): Update core files for Python 3.14 support

Author: chalmerlowe

CONTRIBUTING.rst

@@ -226,12 +226,14 @@ We support:
 -  `Python 3.11`_
 -  `Python 3.12`_
 -  `Python 3.13`_
+-  `Python 3.14`_
 
 .. _Python 3.9: https://docs.python.org/3.9/
 .. _Python 3.10: https://docs.python.org/3.10/
 .. _Python 3.11: https://docs.python.org/3.11/
 .. _Python 3.12: https://docs.python.org/3.12/
 .. _Python 3.13: https://docs.python.org/3.13/
+.. _Python 3.14: https://docs.python.org/3.14/
 
 
 Supported versions can be found in our ``noxfile.py`` `config`_.

noxfile.py

@@ -32,17 +32,18 @@
 ISORT_VERSION = "isort==5.11.0"
 LINT_PATHS = ["docs", "google", "tests", "noxfile.py", "setup.py"]
 
-DEFAULT_PYTHON_VERSION = "3.12"
+DEFAULT_PYTHON_VERSION = "3.14"
 
 DEFAULT_MOCK_SERVER_TESTS_PYTHON_VERSION = "3.12"
-SYSTEM_TEST_PYTHON_VERSIONS: List[str] = ["3.12"]
+SYSTEM_TEST_PYTHON_VERSIONS: List[str] = ["3.14"]
 
 UNIT_TEST_PYTHON_VERSIONS: List[str] = [
     "3.9",
     "3.10",
     "3.11",
     "3.12",
     "3.13",
+    "3.14",
 ]
 UNIT_TEST_STANDARD_DEPENDENCIES = [
     "mock",
@@ -81,6 +82,7 @@
     "unit-3.11",
     "unit-3.12",
     "unit-3.13",
+    "unit-3.14",
     "system",
     "cover",
     "lint",
@@ -480,7 +482,7 @@ def docfx(session):
     )
 
 
-@nox.session(python="3.13")
+@nox.session(python="3.14")
 @nox.parametrize(
     "protobuf_implementation,database_dialect",
     [

setup.py

@@ -87,6 +87,7 @@
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.14",
         "Operating System :: OS Independent",
         "Topic :: Internet",
     ],

testing/constraints-3.14.txt

@@ -10,4 +10,4 @@ google-auth>=2
 grpcio>=1
 proto-plus>=1
 protobuf>=6
-grpc-google-iam-v1>=0
+grpc-google-iam-v1>=0