feat: Add support for python 3.14

.github/.OwlBot.lock.yaml

@@ -0,0 +1,17 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+docker:
+  image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
+  digest: sha256:543e209e7c1c1ffe720eb4db1a3f045a75099304fb19aa11a47dc717b8aae2a9
+# created: 2025-04-10T16:21:41.67162455Z

.github/sync-repo-settings.yaml

@@ -0,0 +1,20 @@
+# https://github.com/googleapis/repo-automation-bots/tree/main/packages/sync-repo-settings
+# Rules for main branch protection
+branchProtectionRules:
+# Identifies the protection rule pattern. Name of the branch to be protected.
+# Defaults to `main`
+- pattern: main
+  requiresCodeOwnerReviews: true
+  requiresStrictStatusChecks: true
+  requiredStatusCheckContexts:
+    - 'Kokoro'
+    - 'cla/google'
+    - 'Samples - Lint'
+    - 'Samples - Python 3.7'
+    - 'Samples - Python 3.8'
+    - 'Samples - Python 3.9'
+    - 'Samples - Python 3.10'
+    - 'Samples - Python 3.11'
+    - 'Samples - Python 3.12'
+    - 'Samples - Python 3.13'
+    - 'Samples - Python 3.14'

.kokoro/samples/python3.14/common.cfg

@@ -0,0 +1,60 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Build logs will be here
+action {
+  define_artifacts {
+    regex: "**/*sponge_log.xml"
+  }
+}
+
+# Specify which tests to run
+env_vars: {
+    key: "RUN_TESTS_SESSION"
+    value: "py-3.14"
+}
+
+# Declare build specific Cloud project.
+env_vars: {
+    key: "BUILD_SPECIFIC_GCLOUD_PROJECT"
+    value: "python-docs-samples-tests-314"
+}
+
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/python-logging/.kokoro/test-samples.sh"
+}
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+    key: "TRAMPOLINE_IMAGE"
+    value: "gcr.io/cloud-devrel-kokoro-resources/python-samples-testing-docker"
+}
+
+# Download secrets for samples
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
+
+# Download trampoline resources.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# Use the trampoline script to run in docker.
+build_file: "python-logging/.kokoro/trampoline_v2.sh"
+
+
+#############################################
+# this section merged from .kokoro/common_env_vars.cfg using owlbot.py
+
+env_vars: {
+    key: "PRODUCT_AREA_LABEL"
+    value: "observability"
+}
+env_vars: {
+    key: "PRODUCT_LABEL"
+    value: "logging"
+}
+env_vars: {
+    key: "LANGUAGE_LABEL"
+    value: "python"
+}
+
+###################################################
+

.kokoro/samples/python3.14/continuous.cfg

@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}

.kokoro/samples/python3.14/periodic-head.cfg

@@ -0,0 +1,11 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}
+
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/python-logging/.kokoro/test-samples-against-head.sh"
+}

.kokoro/samples/python3.14/periodic.cfg

@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "False"
+}

.kokoro/samples/python3.14/presubmit.cfg

@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}

.librarian/generator-input/librarian.py

@@ -96,7 +96,8 @@ def place_before(path, text, *before_text, escape=None):
         "google-cloud-testutils",
         "opentelemetry-sdk"
     ],
-    system_test_python_versions=["3.12"],
+    system_test_python_versions=["3.9"],
+    unit_test_python_versions=["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"],
     unit_test_external_dependencies=["flask", "webob", "django"],
     samples=True,
 )

CONTRIBUTING.rst

@@ -22,7 +22,7 @@ In order to add a feature:
   documentation.
 
 - The feature must work fully on the following CPython versions:
-  3.7, 3.8, 3.9, 3.10, 3.11, 3.12 and 3.13 on both UNIX and Windows.
+  3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13 and 3.14 on both UNIX and Windows.
 
 - The feature must not add unnecessary dependencies (where
   "unnecessary" is of course subjective, but new dependencies should
@@ -72,7 +72,7 @@ We use `nox <https://nox.readthedocs.io/en/latest/>`__ to instrument our tests.
 
 - To run a single unit test::
 
-    $ nox -s unit-3.13 -- -k <name of test>
+    $ nox -s unit-3.14 -- -k <name of test>
 
 
   .. note::
@@ -143,12 +143,12 @@ Running System Tests
    $ nox -s system
 
    # Run a single system test
-   $ nox -s system-3.12 -- -k <name of test>
+   $ nox -s system-3.14 -- -k <name of test>
 
 
   .. note::
 
-      System tests are only configured to run under Python 3.12.
+      System tests are only configured to run under Python 3.14.
       For expediency, we do not run them in older versions of Python 3.
 
   This alone will not run the tests. You'll need to change some local
@@ -228,6 +228,7 @@ We support:
 -  `Python 3.11`_
 -  `Python 3.12`_
 -  `Python 3.13`_
+-  `Python 3.14`_
 
 .. _Python 3.7: https://docs.python.org/3.7/
 .. _Python 3.8: https://docs.python.org/3.8/
@@ -236,6 +237,7 @@ We support:
 .. _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

@@ -32,14 +32,15 @@
 ISORT_VERSION = "isort==5.11.0"
 LINT_PATHS = ["docs", "google", "tests", "noxfile.py", "setup.py"]
 
-DEFAULT_PYTHON_VERSION = "3.10"
+DEFAULT_PYTHON_VERSION = "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",
@@ -58,7 +59,7 @@
 UNIT_TEST_EXTRAS: List[str] = []
 UNIT_TEST_EXTRAS_BY_PYTHON: Dict[str, List[str]] = {}
 
-SYSTEM_TEST_PYTHON_VERSIONS: List[str] = ["3.12"]
+SYSTEM_TEST_PYTHON_VERSIONS: List[str] = [DEFAULT_PYTHON_VERSION]
 SYSTEM_TEST_STANDARD_DEPENDENCIES: List[str] = [
     "mock",
     "pytest",
@@ -79,7 +80,12 @@
 CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
 
 nox.options.sessions = [
-    "unit",
+    "unit-3.9",
+    "unit-3.10",
+    "unit-3.11",
+    "unit-3.12",
+    "unit-3.13",
+    "unit-3.14",
     "system",
     "cover",
     "lint",
@@ -143,7 +149,7 @@ def format(session):
 @nox.session(python=DEFAULT_PYTHON_VERSION)
 def lint_setup_py(session):
     """Verify that setup.py is valid (including RST check)."""
-    session.install("docutils", "pygments")
+    session.install("setuptools", "docutils", "pygments")
     session.run("python", "setup.py", "check", "--restructuredtext", "--strict")
 
 
@@ -182,8 +188,8 @@ def install_unittest_dependencies(session, *constraints):
 )
 def unit(session, protobuf_implementation):
     # Install all test dependencies, then install this package in-place.
-
-    if protobuf_implementation == "cpp" and session.python in ("3.11", "3.12", "3.13"):
+    py_version = tuple([int(v) for v in session.python.split(".")])
+    if protobuf_implementation == "cpp" and py_version >= (3, 11):
         session.skip("cpp implementation is not supported in python 3.11+")
 
     constraints_path = str(
@@ -383,15 +389,20 @@ def docfx(session):
     )
 
 
-@nox.session(python="3.13")
+@nox.session(python=DEFAULT_PYTHON_VERSION)
 @nox.parametrize(
     "protobuf_implementation",
     ["python", "upb", "cpp"],
 )
 def prerelease_deps(session, protobuf_implementation):
     """Run all tests with prerelease versions of dependencies installed."""
 
-    if protobuf_implementation == "cpp" and session.python in ("3.11", "3.12", "3.13"):
+    if protobuf_implementation == "cpp" and session.python in (
+        "3.11",
+        "3.12",
+        "3.13",
+        "3.14",
+    ):
         session.skip("cpp implementation is not supported in python 3.11+")
 
     # Install all dependencies

samples/snippets/export_test.py

@@ -50,8 +50,8 @@ def _create_sink_name():
 
 
 @backoff.on_exception(backoff.expo, Exception, max_time=60, raise_on_giveup=False)
-def _delete_object(obj):
-    obj.delete()
+def _delete_object(obj, **kwargs):
+    obj.delete(**kwargs)
 
 
 # Runs once for entire test suite
@@ -79,7 +79,7 @@ def cleanup_old_sinks():
             # Bucket timestamp is int(time.time() * 1000)
             bucket_timestamp = int(match.group(1))
             if TIMESTAMP - bucket_timestamp // 1000 > CLEANUP_THRESHOLD:
-                _delete_object(bucket)
+                _delete_object(bucket, force=True)
 
 
 @pytest.fixture

samples/snippets/noxfile.py

@@ -89,7 +89,7 @@ def get_pytest_env_vars() -> Dict[str, str]:
 
 # DO NOT EDIT - automatically generated.
 # All versions used to test samples.
-ALL_VERSIONS = ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+ALL_VERSIONS = ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
 
 # Any default versions that should be ignored.
 IGNORED_VERSIONS = TEST_CONFIG["ignored_versions"]

setup.py

@@ -44,6 +44,8 @@
     "google-cloud-audit-log >= 0.3.1, < 1.0.0",
     "google-cloud-core >= 2.0.0, <3.0.0",
     "grpc-google-iam-v1 >=0.12.4, <1.0.0",
+    "grpcio >= 1.33.2, < 2.0.0",
+    "grpcio >= 1.75.1, < 2.0.0; python_version >= '3.14'",
     "opentelemetry-api >= 1.9.0",
     "proto-plus >= 1.22.0, <2.0.0",
     "proto-plus >= 1.22.2, <2.0.0; python_version>='3.11'",
@@ -85,6 +87,8 @@
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
+        "Programming Language :: Python :: 3.14",
         "Operating System :: OS Independent",
         "Topic :: Internet",
     ],

testing/constraints-3.14.txt

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# This constraints file is required for unit tests.
+# List all library dependencies and extras in this file.
+google-api-core
+google-auth
+proto-plus
+protobuf
+google-cloud-core
+google-cloud-appengine-logging
+google-cloud-audit-log
+grpc-google-iam-v1
+opentelemetry-api
+
+# optional dependencies
+django
+flask

tests/system/test_system.py

@@ -721,8 +721,9 @@ def test_log_handler_otel_integration(self):
             self.assertTrue(entries[0].trace_sampled, expected_tracesampled)
 
     def test_log_handler_close(self):
-        from multiprocessing import Process
+        import multiprocessing
 
+        ctx = multiprocessing.get_context('fork')
         LOG_MESSAGE = "This is a test of handler.close before exiting."
         LOGGER_NAME = "close-test"
         handler_name = self._logger_name(LOGGER_NAME)
@@ -746,16 +747,17 @@ def subprocess_main():
             cloud_logger.warning(LOG_MESSAGE)
             handler.close()
 
-        proc = Process(target=subprocess_main)
+        proc = ctx.Process(target=subprocess_main)
         proc.start()
         proc.join()
         entries = _list_entries(logger)
         self.assertEqual(len(entries), 1)
         self.assertEqual(entries[0].payload, LOG_MESSAGE)
 
     def test_log_client_flush_handlers(self):
-        from multiprocessing import Process
+        import multiprocessing
 
+        ctx = multiprocessing.get_context('fork')
         LOG_MESSAGE = "This is a test of client.flush_handlers before exiting."
         LOGGER_NAME = "close-test"
         handler_name = self._logger_name(LOGGER_NAME)
@@ -779,7 +781,7 @@ def subprocess_main():
             cloud_logger.warning(LOG_MESSAGE)
             Config.CLIENT.flush_handlers()
 
-        proc = Process(target=subprocess_main)
+        proc = ctx.Process(target=subprocess_main)
         proc.start()
         proc.join()
         entries = _list_entries(logger)
@@ -1058,7 +1060,7 @@ def retryable():
             # http and gapic results should be consistent
             self.assertEqual(gapic_list[0].insert_id, http_list[0].insert_id)
             # returned logs should be in descending order
-            self.assertEqual(gapic_list[0].payload, f"test {log_count-1}")
+            self.assertEqual(gapic_list[0].payload, f"test {log_count - 1}")
 
         RetryErrors(
             (ServiceUnavailable, InternalServerError, AssertionError),