feat: regenerate google-cloud-[o-r] packages (#17075)

This Pull Request drops support for Python <=3.9 in generated packages.
This is part of our ongoing effort to modernize the Cloud Python SDK
libraries and remove support for End-of-Life (EOL) Python versions.

- Removed Python <=3.9 from testing, configuration, and constraints
files.
- Resolved dependency conflicts arising from dropping Python <=3.9
support.
- Cleaned up obsolete code related to Python <=3.9 support.
- Updated select copyright dates
- Updated some autogenerated headings
- Updated some tests to resolve issues discovered during this migration.

Author: jskeet

packages/google-cloud-optimization/docs/conf.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -83,7 +83,7 @@
 
 # General information about the project.
 project = "google-cloud-optimization"
-copyright = "2025, Google, LLC"
+copyright = "2026, Google, LLC"
 author = "Google APIs"
 
 # The version info for the project you're documenting, acts as replacement for

packages/google-cloud-optimization/google/cloud/optimization_v1/__init__.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -21,13 +21,7 @@
 
 __version__ = package_version.__version__
 
-if sys.version_info >= (3, 8):  # pragma: NO COVER
-    from importlib import metadata
-else:  # pragma: NO COVER
-    # TODO(https://github.com/googleapis/python-api-core/issues/835): Remove
-    # this code path once we drop support for Python 3.7
-    import importlib_metadata as metadata
-
+from importlib import metadata
 
 from .services.fleet_routing import FleetRoutingAsyncClient, FleetRoutingClient
 from .types.async_model import (
@@ -73,28 +67,17 @@
     # An older version of api_core is installed which does not define the
     # functions above. We do equivalent checks manually.
     try:
-        import sys
         import warnings
 
         _py_version_str = sys.version.split()[0]
         _package_label = "google.cloud.optimization_v1"
-        if sys.version_info < (3, 9):
+        if sys.version_info < (3, 10):
             warnings.warn(
                 "You are using a non-supported Python version "
                 + f"({_py_version_str}).  Google will not post any further "
                 + f"updates to {_package_label} supporting this Python version. "
                 + "Please upgrade to the latest Python version, or at "
-                + f"least to Python 3.9, and then update {_package_label}.",
-                FutureWarning,
-            )
-        if sys.version_info[:2] == (3, 9):
-            warnings.warn(
-                f"You are using a Python version ({_py_version_str}) "
-                + f"which Google will stop supporting in {_package_label} in "
-                + "January 2026. Please "
-                + "upgrade to the latest Python version, or at "
-                + "least to Python 3.10, before then, and "
-                + f"then update {_package_label}.",
+                + f"least to Python 3.10, and then update {_package_label}.",
                 FutureWarning,
             )
 

packages/google-cloud-optimization/google/cloud/optimization_v1/services/fleet_routing/async_client.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -465,11 +465,11 @@ async def sample_batch_optimize_tours():
                 )
 
                 # Make the request
-                operation = client.batch_optimize_tours(request=request)
+                operation = await client.batch_optimize_tours(request=request)
 
                 print("Waiting for operation to complete...")
 
-                response = (await operation).result()
+                response = await operation.result()
 
                 # Handle the response
                 print(response)

packages/google-cloud-optimization/noxfile.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -31,7 +31,6 @@
     LINT_PATHS.append("samples")
 
 ALL_PYTHON = [
-    "3.9",
     "3.10",
     "3.11",
     "3.12",
@@ -390,7 +389,6 @@ def docs(session):
     shutil.rmtree(os.path.join("docs", "_build"), ignore_errors=True)
     session.run(
         "sphinx-build",
-        "-W",  # warnings as errors
         "-T",  # show full traceback on exception
         "-N",  # no colors
         "-b",

packages/google-cloud-optimization/samples/generated_samples/cloudoptimization_v1_generated_fleet_routing_batch_optimize_tours_async.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -49,11 +49,11 @@ async def sample_batch_optimize_tours():
     )
 
     # Make the request
-    operation = client.batch_optimize_tours(request=request)
+    operation = await client.batch_optimize_tours(request=request)
 
     print("Waiting for operation to complete...")
 
-    response = (await operation).result()
+    response = await operation.result()
 
     # Handle the response
     print(response)

packages/google-cloud-optimization/setup.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -41,11 +41,11 @@
     release_status = "Development Status :: 5 - Production/Stable"
 
 dependencies = [
-    "google-api-core[grpc] >= 2.11.0, <3.0.0",
+    "google-api-core[grpc] >= 2.17.1, <3.0.0",
     # Exclude incompatible versions of `google-auth`
     # See https://github.com/googleapis/google-cloud-python/issues/12364
     "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
-    "grpcio >= 1.33.2, < 2.0.0",
+    "grpcio >= 1.44.0, < 2.0.0",
     "grpcio >= 1.75.1, < 2.0.0; python_version >= '3.14'",
     "proto-plus >= 1.22.3, <2.0.0",
     "proto-plus >= 1.25.0, <2.0.0; python_version >= '3.13'",
@@ -73,15 +73,14 @@
     long_description=readme,
     author="Google LLC",
     author_email="googleapis-packages@google.com",
-    license="Apache 2.0",
+    license="Apache-2.0",
     url=url,
     classifiers=[
         release_status,
         "Intended Audience :: Developers",
         "License :: OSI Approved :: Apache Software License",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
@@ -92,7 +91,7 @@
     ],
     platforms="Posix; MacOS X; Windows",
     packages=packages,
-    python_requires=">=3.9",
+    python_requires=">=3.10",
     install_requires=dependencies,
     extras_require=extras,
     include_package_data=True,

packages/google-cloud-optimization/testing/constraints-3.10.txt

@@ -1,10 +1,11 @@
-# -*- 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
-grpcio
-proto-plus
-protobuf
-# cryptography is a direct dependency of google-auth
-cryptography
+# This constraints file is used to check that lower bounds
+# are correct in setup.py
+# List all library dependencies and extras in this file,
+# pinning their versions to their lower bounds.
+# For example, if setup.py has "google-cloud-foo >= 1.14.0, < 2.0.0",
+# then this file should have google-cloud-foo==1.14.0
+google-api-core==2.17.1
+google-auth==2.14.1
+grpcio==1.44.0
+proto-plus==1.22.3
+protobuf==4.25.8

packages/google-cloud-optimization/testing/constraints-3.9.txt

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -13,19 +13,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-import os
-import re
-
-# try/except added for compatibility with python < 3.8
-try:
-    from unittest import mock
-    from unittest.mock import AsyncMock  # pragma: NO COVER
-except ImportError:  # pragma: NO COVER
-    import mock
-
 import json
 import math
+import os
+import re
 from collections.abc import AsyncIterable, Iterable, Mapping, Sequence
+from unittest import mock
+from unittest.mock import AsyncMock
 
 import grpc
 import pytest
@@ -1914,7 +1908,7 @@ def test_optimize_tours_rest_required_fields(
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
-            assert expected_params == actual_params
+            assert sorted(expected_params) == sorted(actual_params)
 
 
 def test_optimize_tours_rest_unset_required_fields():
@@ -2040,7 +2034,7 @@ def test_batch_optimize_tours_rest_required_fields(
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
-            assert expected_params == actual_params
+            assert sorted(expected_params) == sorted(actual_params)
 
 
 def test_batch_optimize_tours_rest_unset_required_fields():

packages/google-cloud-optimization/tests/unit/gapic/optimization_v1/test_fleet_routing.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -83,7 +83,7 @@
 
 # General information about the project.
 project = "google-cloud-oracledatabase"
-copyright = "2025, Google, LLC"
+copyright = "2026, Google, LLC"
 author = "Google APIs"
 
 # The version info for the project you're documenting, acts as replacement for