googleapis · chalmerlowe · May 1, 2026 · May 1, 2026 · May 1, 2026 · May 1, 2026
@@ -66,6 +66,7 @@ RUN unzip protoc-25.3-linux-x86_64.zip -d protoc
 
 # Download/extract pandoc
 # Pandoc is required by gapic-generator-python for parsing documentation
+# version-scanner: ignore-next-line
 ENV PANDOC_VERSION=3.8.2
 RUN mkdir pandoc-binary
 RUN wget https://github.com/jgm/pandoc/releases/download/${PANDOC_VERSION}/pandoc-${PANDOC_VERSION}-linux-amd64.tar.gz

@@ -354,7 +354,7 @@ def _run_post_processor(output: str, library_id: str, is_mono_repo: bool):
         # TODO(https://github.com/googleapis/google-cloud-python/issues/15538):
         # Investigate if a `target_version needs to be maintained
         # or can be eliminated.
-        target_version = "py39"
+        target_version = "py310"
         common_args = [
             f"--target-version={target_version}",
             "--line-length=88",

@@ -741,7 +741,7 @@ def test_run_individual_session_success(mocker, caplog, is_mono_repo):
         "cli.subprocess.run", return_value=MagicMock(returncode=0)
     )
 
-    test_session = "unit-3.9"
+    test_session = "unit-3.10"
     test_library_id = "test-library"
     repo = "repo"
     _run_individual_session(test_session, test_library_id, repo, is_mono_repo)

@@ -18,7 +18,7 @@ env:
   SHOWCASE_VERSION: 0.35.0
   PROTOC_VERSION: 3.20.2
   LATEST_STABLE_PYTHON: 3.14
-  ALL_PYTHON: "['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']"
+  ALL_PYTHON: "['3.10', '3.11', '3.12', '3.13', '3.14']"
 
 jobs:
   check_changes:

@@ -26,6 +26,6 @@ repos:
     hooks:
     - id: black
 -   repo: https://github.com/pycqa/flake8
-    rev: 3.9.2
+    rev: 3.9.2 # version-scanner: ignore
     hooks:
     - id: flake8
@@ -17,7 +17,7 @@
 # `BUILD_TYPE` should be one of ["presubmit", "continuous"]
 # `TEST_TYPE` should be one of ["docs", "docfx", "prerelease", "unit"]
 # or match the name of the nox session that you want to run.
-# `PY_VERSION` should be one of ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+# `PY_VERSION` should be one of ["3.10", "3.11", "3.12"]
 
 # `TEST_TYPE` and `PY_VERSION` are required by the script `ci/run_single_test.sh`
 

@@ -16,7 +16,7 @@
 
 # This script requires the following environment variables to be set:
 # `TEST_TYPE` should be one of ["lint", "lint_setup_py", "docs", "docfx", "prerelease"]
-# `PY_VERSION` should be one of ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+# `PY_VERSION` should be one of ["3.10", "3.11", "3.12", "3.13"]
 
 # This script is called by the `ci/run_conditional_tests.sh` script.
 # A specific `nox` session will be run, depending on the value of 
@@ -70,14 +70,6 @@ case ${TEST_TYPE} in
         ;;
     unit)
         case ${PY_VERSION} in
-        "3.7")
-            nox -s unit-3.7
-            retval=$?
-            ;;
-        "3.8")
-            nox -s unit-3.8
-            retval=$?
-            ;;
         "3.9")
             nox -s unit-3.9
             retval=$?

@@ -8,7 +8,7 @@ Create a virtual environment for the library:
 
 .. code-block:: shell
 
-  $ virtualenv ~/.local/client-lib --python=`which python3.7`
+  $ virtualenv ~/.local/client-lib --python=`which python3.10`
   $ source ~/.local/client-lib/bin/activate
 
 Next, install the library:

@@ -29,7 +29,7 @@ install it is simply downloading the binary and making it executable:
 Python and Dependencies
 ~~~~~~~~~~~~~~~~~~~~~~~
 Bazel build is mostly hermetic, with a few exceptions for Python generator.
-Specifically it expects Python 3.7+ with the python dev packages to be installed.
+Specifically it expects Python 3.10+ with the python dev packages to be installed.
 
 On Linux, to install those, simply run:
 

@@ -2,7 +2,7 @@ Getting Started
 ---------------
 
 This code generator is implemented as a plugin to ``protoc``, the compiler
-for `protocol buffers`_, and will run in any environment that Python 3.7+ and
+for `protocol buffers`_, and will run in any environment that Python 3.10+ and
 protocol buffers do.
 
 It is recommended to install the tool locally and run it through ``protoc``.

@@ -11,8 +11,8 @@ from {{package_path}} import gapic_version as package_version
 __version__ = package_version.__version__
 
 
-if sys.version_info < (3, 7):
-    raise ImportError('This module requires Python 3.7 or later.')
+if sys.version_info < (3, 10):
+    raise ImportError('This module requires Python 3.10 or later.')
 
 
 _lazy_type_to_package_map = {
@@ -37,14 +37,14 @@ _lazy_type_to_package_map = {
 
 
 # Background on how this behaves: https://www.python.org/dev/peps/pep-0562/
-def __getattr__(name):  # Requires Python >= 3.7
+def __getattr__(name):
     if name == '__all__':
         all_names = globals()['__all__'] = sorted(_lazy_type_to_package_map)
         return all_names
     elif name in _lazy_type_to_package_map:
         module = importlib.import_module(f'{_lazy_type_to_package_map[name]}')
         klass = getattr(module, name)
-        {# new_klass = type(name, (klass,), {'__doc__': klass.__doc__}) #}
+
         globals()[name] = klass
         return klass
     else:

@@ -6,8 +6,8 @@ import importlib
 import sys
 
 
-if sys.version_info < (3, 7):
-    raise ImportError('This module requires Python 3.7 or later.')
+if sys.version_info < (3, 10):
+    raise ImportError('This module requires Python 3.10 or later.')
 
 
 _lazy_type_to_package_map = {
@@ -30,14 +30,14 @@ _lazy_type_to_package_map = {
 
 
 # Background on how this behaves: https://www.python.org/dev/peps/pep-0562/
-def __getattr__(name):  # Requires Python >= 3.7
+def __getattr__(name):
     if name == '__all__':
         all_names = globals()['__all__'] = sorted(_lazy_type_to_package_map)
         return all_names
     elif name in _lazy_type_to_package_map:
         module = importlib.import_module(f'{_lazy_type_to_package_map[name]}')
         klass = getattr(module, name)
-        {# new_klass = type(name, (klass,), {'__doc__': klass.__doc__}) #}
+
         globals()[name] = klass
         return klass
     else:

@@ -1,3 +1,3 @@
 [mypy]
-python_version = 3.7
+python_version = 3.10
 namespace_packages = True
@@ -11,7 +11,6 @@ import nox  # type: ignore
 # Add tests for Python 3.15 alpha1
 # https://peps.python.org/pep-0790/
 ALL_PYTHON = [
-    "3.9",
     "3.10",
     "3.11",
     "3.12",

@@ -64,7 +64,6 @@ setuptools.setup(
         "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",
@@ -75,7 +74,7 @@ setuptools.setup(
     ],
     platforms="Posix; MacOS X; Windows",
     packages=packages,
-    python_requires=">=3.9",
+    python_requires=">=3.10",
     install_requires=dependencies,
     include_package_data=True,
     zip_safe=False,

@@ -7,12 +7,8 @@ import os
 {% if api.all_method_settings.values()|map(attribute="auto_populated_fields", default=[])|list %}
 import re
 {% endif %}
-# 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
+from unittest import mock
+from unittest.mock import AsyncMock
 
 import grpc
 from grpc.experimental import aio

@@ -1284,19 +1284,13 @@ def _to_regex(self, path_template: str) -> Pattern:
         return re.compile(f"^{self._convert_to_regex(path_template)}$")
 
     # Use caching to avoid repeated computation
-    # TODO(https://github.com/googleapis/gapic-generator-python/issues/2161):
-    # Use `@functools.cache` instead of `@functools.lru_cache` once python 3.8 is dropped.
-    # https://docs.python.org/3/library/functools.html#functools.cache
-    @functools.lru_cache(maxsize=None)
+    @functools.cache
     def to_regex(self) -> Pattern:
         return self._to_regex(self.path_template)
 
     @property
     # Use caching to avoid repeated computation
-    # TODO(https://github.com/googleapis/gapic-generator-python/issues/2161):
-    # Use `@functools.cache` instead of `@functools.lru_cache` once python 3.8 is dropped.
-    # https://docs.python.org/3/library/functools.html#functools.cache
-    @functools.lru_cache(maxsize=None)
+    @functools.cache
     def key(self) -> Union[str, None]:
         if self.path_template == "":
             return self.field

@@ -10,12 +10,7 @@ import sys
 
 __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
 
 {#  Import subpackages. -#}
 {% for subpackage, _ in api.subpackages|dictsort %}
@@ -61,24 +56,15 @@ else:   # pragma: NO COVER
     # functions above. We do equivalent checks manually.
     try:
         import warnings
-        import sys
 
         _py_version_str = sys.version.split()[0]
         _package_label = "{{package_path}}"
-        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)
 
         def parse_version_to_tuple(version_string: str):

@@ -25,7 +25,6 @@ if os.path.isdir("samples"):
     LINT_PATHS.append("samples")
 
 ALL_PYTHON = [
-    "3.9",
     "3.10",
     "3.11",
     "3.12",

@@ -89,7 +89,6 @@ setuptools.setup(
         "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",
@@ -100,7 +99,7 @@ setuptools.setup(
     ],
     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,

@@ -1,4 +1,20 @@
-# -*- coding: utf-8 -*-
-{% block constraints %}
-{% include "testing/_default_constraints.j2" %}
-{% endblock %}
+{% from '_pypi_packages.j2' import pypi_packages %}
+# 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
+{% for package_tuple, package_info in pypi_packages.items() %}
+{# Quick check to make sure `package_info.package_name` is not the package being generated so we don't circularly include this package in its own constraints file. #}
+{% if api.naming.warehouse_package_name != package_info.package_name %}
+{% if api.requires_package(package_tuple) %}
+{{ package_info.package_name }}=={{ package_info.lower_bound }}
+{% endif %}
+{% endif %}
+{% endfor %}
@@ -10,12 +10,8 @@ import os
 {% if api.all_method_settings.values()|map(attribute="auto_populated_fields", default=[])|list %}
 import re
 {% endif %}
-# 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
+from unittest import mock
+from unittest.mock import AsyncMock
 
 import grpc
 from grpc.experimental import aio

@@ -1005,9 +1005,7 @@ async def test_{{ method_name }}_async_pages():
         {% endif %}
         )
         pages = []
-        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
-        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
-        async for page_ in ( # pragma: no branch
+        async for page_ in (
             await client.{{ method_name }}(request={})
         ).pages:
             pages.append(page_)

@@ -57,7 +57,7 @@ class Options:
     OPT_FLAGS: FrozenSet[str] = frozenset(
         (
             "add-iam-methods",  # microgenerator implementation for `reroute_to_grpc_interface`
-            "lazy-import",  # requires >= 3.7
+            "lazy-import",
             "metadata",  # generate GAPIC metadata JSON file
             "old-naming",  # TODO(dovs): Come up with a better comment
             "retry-config",  # takes a path
-Original file line number
+Diff line change
@@ Expand Up / @@ -11,7 +11,6 @@ import nox # type: ignore @@
     # Add tests for Python 3.15 alpha1
     # https://peps.python.org/pep-0790/
     ALL_PYTHON = [
-        "3.9",
         "3.10",
         "3.11",
         "3.12",
@@ Expand Down @@