chore: require Python ≥ 3.9, protobuf ≥ 4.25.8

.github/workflows/unittest.yml

@@ -35,15 +35,10 @@ jobs:
         nox -s prerelease_deps
   unit:
     name: unit${{ matrix.option }}-${{ matrix.python }}
-    # TODO(https://github.com/googleapis/gapic-generator-python/issues/2303): use `ubuntu-latest` once this bug is fixed.
-    # Use ubuntu-22.04 until Python 3.7 is removed from the test matrix
-    # https://docs.github.com/en/actions/using-github-hosted-runners/using-github-hosted-runners/about-github-hosted-runners#standard-github-hosted-runners-for-public-repositories
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         python:
-          - "3.7"
-          - "3.8"
           - "3.9"
           - "3.10"
           - "3.11"

noxfile.py

@@ -28,7 +28,7 @@
 # Black and flake8 clash on the syntax for ignoring flake8's F401 in this file.
 BLACK_EXCLUDES = ["--exclude", "^/google/api_core/operations_v1/__init__.py"]
 
-PYTHON_VERSIONS = ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+PYTHON_VERSIONS = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
 
 DEFAULT_PYTHON_VERSION = "3.14"
 CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
@@ -91,7 +91,9 @@ def install_prerelease_dependencies(session, constraints_path):
                 r"^\s*(\S+)(?===\S+)", constraints_text, flags=re.MULTILINE
             )
         ]
-        session.install(*constraints_deps)
+        if constraints_deps:
+            session.install(*constraints_deps)
+
         prerel_deps = [
             "google-auth",
             "googleapis-common-protos",
@@ -107,6 +109,9 @@ def install_prerelease_dependencies(session, constraints_path):
         # Remaining dependencies
         other_deps = [
             "requests",
+            "pyasn1",
+            "cryptography",
+            "cachetools",
         ]
         session.install(*other_deps)
 
@@ -124,7 +129,6 @@ def default(session, install_grpc=True, prerelease=False, install_async_rest=Fal
 
     session.install(
         "dataclasses",
-        "mock; python_version=='3.7'",
         "pytest",
         "pytest-cov",
         "pytest-mock",
@@ -276,7 +280,6 @@ def mypy(session):
         "types-requests",
         "types-protobuf",
         "types-dataclasses",
-        "types-mock; python_version=='3.7'",
     )
     session.run("mypy", "google", "tests")
 

pyproject.toml

@@ -20,7 +20,7 @@ build-backend = "setuptools.build_meta"
 name = "google-api-core"
 authors = [{ name = "Google LLC", email = "[email protected]" }]
 license = { text = "Apache 2.0" }
-requires-python = ">=3.7"
+requires-python = ">=3.9"
 readme = "README.rst"
 description = "Google API client core library"
 classifiers = [
@@ -33,8 +33,7 @@ classifiers = [
   "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",
   "Programming Language :: Python :: 3.11",
@@ -83,7 +82,7 @@ version = { attr = "google.api_core.version.__version__" }
 include = ["google*"]
 
 [tool.mypy]
-python_version = "3.7"
+python_version = "3.9"
 namespace_packages = true
 ignore_missing_imports = true
 
@@ -97,9 +96,7 @@ filterwarnings = [
   "ignore:.*The --rsyncdir command line argument and rsyncdirs config variable are deprecated:DeprecationWarning",
   # Remove once https://github.com/protocolbuffers/protobuf/issues/12186 is fixed
   "ignore:.*custom tp_new.*in Python 3.14:DeprecationWarning",
-  # Remove once support for python 3.7 is dropped
-  # This warning only appears when using python 3.7
-  "ignore:.*Using or importing the ABCs from.*collections:DeprecationWarning",
+
   # Remove once support for grpcio-gcp is deprecated
   # See https://github.com/googleapis/python-api-core/blob/42e8b6e6f426cab749b34906529e8aaf3f133d75/google/api_core/grpc_helpers.py#L39-L45
   "ignore:.*Support for grpcio-gcp is deprecated:DeprecationWarning",
@@ -110,6 +107,5 @@ filterwarnings = [
   "ignore:.*pkg_resources is deprecated as an API:DeprecationWarning",
   # Remove once https://github.com/grpc/grpc/issues/35086 is fixed (and version newer than 1.60.0 is published)
   "ignore:There is no current event loop:DeprecationWarning",
-  # Remove after support for Python 3.7 is dropped
-  "ignore:After January 1, 2024, new releases of this library will drop support for Python 3.7:DeprecationWarning",
+
 ]

setup.cfg

@@ -1,5 +1,5 @@
 [pytype]
-python_version = 3.7
+python_version = 3.9
 inputs =
     google/
 exclude =

tests/asyncio/test_operation_async.py

@@ -181,7 +181,7 @@ async def test_unexpected_result(unused_sleep):
 async def test_from_gapic():
     operation_proto = make_operation_proto(done=True)
     operations_client = mock.create_autospec(
-        operations_v1.OperationsClient, instance=True
+        operations_v1.OperationsAsyncClient, instance=True
     )
 
     future = operation_async.from_gapic(