fix: bump grpcio to 1.59.0; require Python 3.10+

.librarian/generator-input/client-post-processing/bigtable-integration.yaml

@@ -200,7 +200,7 @@ replacements:
       "protobuf >= 4.25.8, < 8.0.0",
           "google-cloud-core >= 2.0.0, <3.0.0",
           "grpc-google-iam-v1 >= 0.14.0, <1.0.0",
-          "google-crc32c>=1.6.0, <2.0.0dev",
+          "google-crc32c>=1.6.0, < 2.0.0",
       ]
     count: 1
   - paths: [

.librarian/generator-input/client-post-processing/pubsub-integration.yaml

@@ -374,7 +374,8 @@ replacements:
       - "packages/google-cloud-pubsub/setup.py"
     before: '([ \t]+)("grpc-google-iam-v1.*",\n)\]\nextras = \{\}'
     after: |-
-      \g<1>\g<2>\g<1>"grpcio-status >= 1.51.3",
+      \g<1>\g<2>\g<1>"grpcio-status >= 1.59.0, < 2.0.0",
+      \g<1>"grpcio-status >= 1.75.1, < 2.0.0; python_version >= '3.14'",
       \g<1>"opentelemetry-api >= 1.27.0",
       \g<1>"opentelemetry-sdk >= 1.27.0",
       ]
@@ -509,21 +510,7 @@ replacements:
     before: 'grpc-google-iam-v1==0\.14\.0\n(?!grpcio-status)'
     after: |-
       grpc-google-iam-v1==0.14.0
-      grpcio-status==1.51.3
+      grpcio-status==1.59.0
       opentelemetry-api==1.27.0
       opentelemetry-sdk==1.27.0
     count: 1
-
-  - paths:
-      - "packages/google-cloud-pubsub/testing/constraints-3.10.txt"
-    before: 'grpcio==1.59.0'
-    after: 'grpcio==1.51.3'
-    count: 1
-
-  - paths:
-      - "packages/google-cloud-pubsub/setup.py"
-    before: '([ \t]+)"grpcio >= [0-9\.]+, < 2\.0\.0",\n(?:[ \t]*)"grpcio >= 1\.75\.1, < 2\.0\.0; python_version >= ''3\.14''",\n'
-    after: |-
-      \g<1>"grpcio >= 1.51.3, < 2.0.0; python_version < '3.14'",
-      \g<1>"grpcio >= 1.75.1, < 2.0.0; python_version >= '3.14'",
-    count: 1

.librarian/generator-input/client-post-processing/spanner-integration.yaml

@@ -130,7 +130,7 @@ replacements:
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
           "google-cloud-core >= 2.0.0, < 3.0.0",
-          "grpcio >= 1.49.1, < 2.0.0",
+          "grpcio >= 1.59.0, < 2.0.0",
           "grpcio >= 1.75.1, < 2.0.0; python_version >= '3.14'",
           "grpc-google-iam-v1 >= 0.12.4, <1.0.0",
           "proto-plus >= 1.22.3, <2.0.0",
@@ -1390,6 +1390,7 @@ replacements:
       protobuf==4.25.8
       google-cloud-core==2.0.0
       grpc-google-iam-v1==0.12.4
+      grpcio-status==1.59.0
       sqlparse==0.4.4
       grpc-interceptor==0.15.4
       opentelemetry-api==1.22.0
@@ -1401,9 +1402,3 @@ replacements:
       libcst==0.2.5
       googleapis-common-protos==1.60.0
     count: 1
-  - paths: [packages/google-cloud-spanner/testing/constraints-3.10.txt]
-    before: 'grpcio==1.59.0\n(?!grpcio-status)'
-    after: |
-      grpcio==1.49.1
-      grpcio-status==1.49.1
-    count: 1

.librarian/generator-input/client-post-processing/storage-integration.yaml

@@ -597,9 +597,9 @@ replacements:
           # experimental in this SDK. More info in b/465352227
           "grpc": [
               "google-api-core[grpc] >= 2.27.0, < 3.0.0",
-              "grpcio >= 1.59.0, < 2.0.0; python_version < '3.14'",
+              "grpcio >= 1.59.0, < 2.0.0",
               "grpcio >= 1.75.1, < 2.0.0; python_version >= '3.14'",
-              "grpcio-status >= 1.59.0, < 2.0.0; python_version < '3.14'",
+              "grpcio-status >= 1.59.0, < 2.0.0",
               "grpcio-status >= 1.75.1, < 2.0.0; python_version >= '3.14'",
               "proto-plus >= 1.22.3, <2.0.0; python_version < '3.13'",
               "proto-plus >= 1.25.0, <2.0.0; python_version >= '3.13'",

packages/bigquery-magics/noxfile.py

@@ -279,8 +279,6 @@ def install_systemtest_dependencies(session, with_extras, *constraints):
 @nox.parametrize("with_extras", [True, False])
 def system(session, with_extras):
     """Run the system test suite."""
-    if session.python == "3.9":
-        session.skip("Python 3.9 is not supported.")
 
     constraints_path = str(
         CURRENT_DIRECTORY / "testing" / f"constraints-{session.python}.txt"

packages/bigquery-magics/setup.py

@@ -52,8 +52,7 @@
         # See: https://github.com/googleapis/python-bigquery/issues/83 The
         # grpc.Channel.close() method isn't added until 1.32.0.
         # https://github.com/grpc/grpc/pull/15254
-        "grpcio >= 1.47.0, < 2.0.0",
-        "grpcio >= 1.49.1, < 2.0.0; python_version >= '3.11' and python_version < '3.14'",
+        "grpcio >= 1.59.0, < 2.0.0",
         "grpcio >= 1.75.1, < 2.0.0; python_version >= '3.14'",
     ],
     "bigframes": ["bigframes >= 1.17.0"],

packages/gapic-generator/gapic/ads-templates/setup.py.j2

@@ -32,7 +32,7 @@ dependencies = [
     "google-api-core[grpc] >= 2.24.2, < 3.0.0",
     "google-auth >= 2.14.1, <3.0.0",
     "googleapis-common-protos >= 1.53.0",
-    "grpcio >= 1.10.0",
+    "grpcio >= 1.59.0, < 2.0.0",
     "proto-plus >= 1.26.1, <2.0.0",
     "protobuf >= 6.33.5, < 8.0.0",
     {% if api.requires_package(('google', 'iam', 'v1')) %}

packages/gapic-generator/noxfile.py

@@ -14,7 +14,7 @@
 
 # Helpful notes for local usage:
 #   unset PYENV_VERSION
-#   pyenv local 3.14.1 3.13.10 3.12.11 3.11.4 3.10.12 3.9.17
+#   pyenv local 3.14.1 3.13.10 3.12.11 3.11.4 3.10.12
 #   PIP_INDEX_URL=https://pypi.org/simple nox
 
 from __future__ import absolute_import
@@ -44,7 +44,6 @@
 RUFF_EXCLUDES = "*golden*,*pb2.py,*pb2.pyi"
 
 ALL_PYTHON = (
-    "3.9",
     "3.10",
     "3.11",
     "3.12",
@@ -58,8 +57,6 @@
 @nox.session(python=ALL_PYTHON)
 def unit(session):
     """Run the unit test suite."""
-    if session.python == "3.9":
-        session.skip("Skipping Python 3.9 unit tests temporarily.")
     session.install(
         # TODO(https://github.com/googleapis/gapic-generator-python/issues/2478):
         # Temporarily pin coverage to 7.11.0

packages/gapic-generator/setup.py

@@ -30,7 +30,7 @@
     "click >= 6.7",
     "google-api-core[grpc] >= 2.24.2, < 3.0.0",
     "googleapis-common-protos >= 1.55.0, < 2.0.0",
-    "grpcio >= 1.24.3, < 2.0.0",
+    "grpcio >= 1.59.0, < 2.0.0",
     # 2.11.0 is required which adds the `default` argument to `jinja-filters.map()`
     # https://jinja.palletsprojects.com/en/3.0.x/templates/#jinja-filters.map
     # https://jinja.palletsprojects.com/en/2.11.x/changelog/#version-2-11-0

packages/gcp-sphinx-docfx-yaml/docfx_yaml/markdown_utils.py

@@ -307,9 +307,10 @@ def _merge_markdown_content(
             content before the base file content.
     """
     try:
-        with open(base_file, "r+") as base, open(
-            additional_content_file, "r"
-        ) as additional_content:
+        with (
+            open(base_file, "r+") as base,
+            open(additional_content_file, "r") as additional_content,
+        ):
             file_content = (
                 f"{additional_content.read()}\n{base.read()}"
                 if prepend_additional_content

packages/gcp-sphinx-docfx-yaml/noxfile.py

@@ -17,7 +17,7 @@
 import nox
 
 DEFAULT_PYTHON_VERSION = "3.14"
-UNIT_TEST_PYTHON_VERSIONS = ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+UNIT_TEST_PYTHON_VERSIONS = ["3.10", "3.11", "3.12", "3.13", "3.14"]
 RUFF_VERSION = "ruff==0.14.14"
 
 ALL_PYTHON = list(UNIT_TEST_PYTHON_VERSIONS)
@@ -135,10 +135,10 @@ def lint_setup_py(session):
 @nox.session(python=UNIT_TEST_PYTHON_VERSIONS)
 def unit(session):
     """Run unit tests."""
-    # Re-enable 3.8, 3.9, 3.11, 3.12, and 3.13 after environment verification.
+    # Re-enable 3.11, 3.12, and 3.13 after environment verification.
     # TODO(https://github.com/googleapis/google-cloud-python/issues/16176):
     # Track 3.14 compatibility as upstream dependencies stabilize.
-    _skip_python_session(session, ["3.7", "3.8", "3.9", "3.11", "3.12", "3.13", "3.14"])
+    _skip_python_session(session, ["3.11", "3.12", "3.13", "3.14"])
     session.install("-r", "requirements.txt")
     session.install("pytest")
     session.run("pytest", "tests")

packages/gcp-sphinx-docfx-yaml/setup.py

@@ -56,9 +56,9 @@
     package_dir={"": "."},
     packages=packages,
     install_requires=dependencies,
-    python_requires=">=3.8",
+    python_requires=">=3.10",
     classifiers=[
-        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.10",
     ],
     include_package_data=True,
     zip_safe=False,

packages/gcp-sphinx-docfx-yaml/tests/testdata/auth/setup.py

@@ -43,15 +43,11 @@
             "google-oauthlib-tool=google_auth_oauthlib.tool.__main__:main [tool]"
         ]
     },
-    python_requires=">=3.6",
+    python_requires=">=3.10",
     license="Apache 2.0",
     keywords="google auth oauth client oauthlib",
     classifiers=[
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Development Status :: 5 - Production/Stable",

packages/gcp-sphinx-docfx-yaml/tests/testdata/gapic-auto/setup.py

@@ -85,9 +85,6 @@
         "License :: OSI Approved :: Apache Software License",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Operating System :: OS Independent",
         "Topic :: Internet",
@@ -97,7 +94,7 @@
     namespace_packages=namespaces,
     install_requires=dependencies,
     extras_require=extras,
-    python_requires=">=3.7",
+    python_requires=">=3.10",
     scripts=["scripts/fixup_keywords.py"],
     include_package_data=True,
     zip_safe=False,

packages/gcp-sphinx-docfx-yaml/tests/testdata/gapic-combo/setup.py

@@ -28,12 +28,12 @@
 # 'Development Status :: 5 - Production/Stable'
 release_status = "Development Status :: 5 - Production/Stable"
 dependencies = [
-    "grpcio >= 1.38.1, < 2.0dev",  # https://github.com/googleapis/python-pubsub/issues/414
+    "grpcio >= 1.59.0, < 2.0dev",  # https://github.com/googleapis/python-pubsub/issues/414
     "google-api-core[grpc] >= 1.32.0, <3.0.0dev,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*",
     "proto-plus >= 1.22.0, <2.0.0dev",
     "protobuf>=3.19.5,<5.0.0dev,!=3.20.0,!=3.20.1,!=4.21.0,!=4.21.1,!=4.21.2,!=4.21.3,!=4.21.4,!=4.21.5",
     "grpc-google-iam-v1 >=0.12.4, <1.0.0dev",
-    "grpcio-status >= 1.16.0",
+    "grpcio-status >= 1.59.0, < 2.0.0",
 ]
 extras = {"libcst": "libcst >= 0.3.10"}
 
@@ -75,9 +75,6 @@
         "License :: OSI Approved :: Apache Software License",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Operating System :: OS Independent",
         "Topic :: Internet",
@@ -87,7 +84,7 @@
     namespace_packages=namespaces,
     install_requires=dependencies,
     extras_require=extras,
-    python_requires=">=3.7",
+    python_requires=">=3.10",
     scripts=["scripts/fixup_pubsub_v1_keywords.py"],
     include_package_data=True,
     zip_safe=False,

packages/gcp-sphinx-docfx-yaml/tests/testdata/handwritten/setup.py

@@ -76,9 +76,6 @@
         "License :: OSI Approved :: Apache Software License",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Operating System :: OS Independent",
         "Topic :: Internet",
@@ -88,7 +85,7 @@
     namespace_packages=namespaces,
     install_requires=dependencies,
     extras_require=extras,
-    python_requires=">=3.7",
+    python_requires=">=3.10",
     include_package_data=True,
     zip_safe=False,
 )

packages/gcp-sphinx-docfx-yaml/tests/testdata/non-cloud/setup.py

@@ -84,9 +84,6 @@
         "License :: OSI Approved :: BSD License",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Operating System :: OS Independent",
@@ -97,7 +94,7 @@
     packages=packages,
     install_requires=dependencies,
     extras_require=extras,
-    python_requires=">=3.7",
+    python_requires=">=3.10",
     include_package_data=True,
     zip_safe=False,
 )

packages/google-api-core/pyproject.toml

@@ -60,11 +60,9 @@ Repository = "https://github.com/googleapis/google-cloud-python"
 [project.optional-dependencies]
 async_rest = ["google-auth[aiohttp] >= 2.14.1, < 3.0.0", "aiohttp >= 3.13.4"]
 grpc = [
-  "grpcio >= 1.41.0, < 2.0.0",
-  "grpcio >= 1.49.1, < 2.0.0; python_version >= '3.11'",
+  "grpcio >= 1.59.0, < 2.0.0",
   "grpcio >= 1.75.1, < 2.0.0; python_version >= '3.14'",
-  "grpcio-status >= 1.41.0, < 2.0.0",
-  "grpcio-status >= 1.49.1, < 2.0.0; python_version >= '3.11'",
+  "grpcio-status >= 1.59.0, < 2.0.0",
   "grpcio-status >= 1.75.1, < 2.0.0; python_version >= '3.14'",
 ]
 

packages/google-api-core/testing/constraints-3.10.txt

@@ -9,6 +9,6 @@ googleapis-common-protos==1.63.2
 protobuf==5.29.6
 google-auth==2.14.1
 requests==2.33.0
-grpcio==1.41.0
-grpcio-status==1.41.0
+grpcio==1.59.0
+grpcio-status==1.59.0
 proto-plus==1.24.0

packages/google-api-core/testing/constraints-async-rest-3.10.txt

@@ -9,7 +9,7 @@ googleapis-common-protos==1.63.2
 protobuf==5.29.6
 google-auth==2.14.1
 requests==2.33.0
-grpcio==1.41.0
-grpcio-status==1.41.0
+grpcio==1.59.0
+grpcio-status==1.59.0
 proto-plus==1.24.0
 aiohttp==3.13.4

packages/google-cloud-access-context-manager/noxfile.py

@@ -32,7 +32,6 @@
 LINT_PATHS = ["docs", "google", "tests", "noxfile.py", "setup.py"]
 
 UNIT_TEST_PYTHON_VERSIONS: List[str] = [
-    "3.9",
     "3.10",
     "3.11",
     "3.12",
@@ -56,7 +55,6 @@
 UNIT_TEST_EXTRAS_BY_PYTHON: Dict[str, List[str]] = {}
 
 SYSTEM_TEST_PYTHON_VERSIONS: List[str] = [
-    "3.9",
     "3.10",
     "3.11",
     "3.12",

packages/google-cloud-access-context-manager/setup.py

@@ -55,7 +55,6 @@
         "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",
@@ -67,7 +66,7 @@
     platforms="Posix; MacOS X; Windows",
     packages=find_namespace_packages(exclude=("tests*", "testing*")),
     install_requires=dependencies,
-    python_requires=">=3.9",
+    python_requires=">=3.10",
     include_package_data=True,
     zip_safe=False,
 )

packages/google-cloud-access-context-manager/testing/constraints-3.10.txt

@@ -0,0 +1,9 @@
+# This constraints file is used to check that lower bounds
+# are correct in setup.py
+# List *all* library dependencies and extras in this file.
+# Pin the version to the lower bound.
+#
+# e.g., if setup.py has "foo >= 1.14.0, < 2.0.0dev",
+# Then this file should have foo==1.14.0
+protobuf==4.25.8
+google-api-core==2.11.0