chore: chore

.github/sync-repo-settings.yaml

@@ -16,7 +16,7 @@ branchProtectionRules:
     - 'cla/google'
     - 'Kokoro docs-presubmit'
     - 'Presubmit - Lint and Coverage'
-    - 'Presubmit - Unit Tests Python 3.9'
+
     - 'Presubmit - Unit Tests Python 3.10'
     - 'Presubmit - Unit Tests Python 3.11'
     - 'Presubmit - Unit Tests Python 3.12'
@@ -27,7 +27,7 @@ branchProtectionRules:
     - 'Presubmit - Unit Tests Ray 2.42.0 (Python 3.10)'
     - 'Presubmit - Unit Tests Ray 2.42.0 (Python 3.11)'
     - 'Presubmit - Unit Tests Ray 2.47.1 (Python 3.11)'
-    - 'Presubmit - Unit Tests LangChain (Python 3.9)'
+
     - 'Presubmit - Unit Tests LangChain (Python 3.10)'
     - 'Presubmit - Unit Tests LangChain (Python 3.11)'
     - 'Presubmit - Unit Tests LangChain (Python 3.12)'

.github/workflows/mypy.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
 
     steps:
       - name: Checkout code

.kokoro/continuous/unit.cfg

@@ -1,6 +1,6 @@
 # Format: //devtools/kokoro/config/proto/build.proto
 
-# Run all unit test sessions, in Python 3.7 to 3.9
+# Run all unit test sessions
 env_vars: {
     key: "NOX_SESSION"
     value: "unit"

.kokoro/docker/docs/Dockerfile

@@ -60,24 +60,11 @@ RUN apt-get update \
   && rm -rf /var/lib/apt/lists/* \
   && rm -f /var/cache/apt/archives/*.deb
 
-###################### Install python 3.9.13
-
-# Download python 3.9.13
-RUN wget https://www.python.org/ftp/python/3.9.13/Python-3.9.13.tgz
-
-# Extract files
-RUN tar -xvf Python-3.9.13.tgz
-
-# Install python 3.9.13
-RUN ./Python-3.9.13/configure --enable-optimizations
-RUN make altinstall
-
-###################### Install pip
-RUN wget -O /tmp/get-pip.py 'https://bootstrap.pypa.io/get-pip.py' \
-  && python3 /tmp/get-pip.py \
-  && rm /tmp/get-pip.py
-
-# Test pip
-RUN python3 -m pip
-
-CMD ["python3.9"]
+###################### Install python 3.10.13
+# Download python 3.10.13
+RUN wget https://www.python.org/ftp/python/3.10.13/Python-3.10.13.tgz
+RUN tar -xvf Python-3.10.13.tgz
+# Install python 3.10.13
+RUN ./Python-3.10.13/configure --enable-optimizations
+RUN make install
+CMD ["python3.10"]

.kokoro/presubmit/presubmit.cfg

@@ -1,11 +1,11 @@
 # Format: //devtools/kokoro/config/proto/build.proto
 
 # Run all sessions except system tests and docs builds
-# This only runs unit tests for Python 3.9 since unit tests are required for `cover` to run
+# This only runs unit tests for Python 3.10 since unit tests are required for `cover` to run
 # Other Python version unit tests are run separately
 env_vars: {
     key: "NOX_SESSION"
-    value: "unit-3.9 lint lint_setup_py blacken cover"
+    value: "unit-3.10 lint lint_setup_py blacken cover"
 }
 
 # Run unit tests in parallel, splitting up by file

.kokoro/presubmit/release.cfg

@@ -3,7 +3,7 @@
 # Run system tests in presubmit for library releases
 env_vars: {
     key: "NOX_SESSION"
-    value: "system-3.9 unit"
+    value: "system-3.10 unit"
 }
 
 # Run system tests in parallel, splitting up by file

.kokoro/presubmit/unit_3-9.cfg

@@ -3,7 +3,7 @@
 # Run unit tests for Python 3.9
 env_vars: {
     key: "NOX_SESSION"
-    value: "unit-3.9"
+    value: "unit-3.10"
 }
 
 # Run unit tests in parallel, splitting up by file

.kokoro/presubmit/unit_langchain_py39.cfg

@@ -3,7 +3,7 @@
 # Run unit tests for LangChain on Python 3.9
 env_vars: {
     key: "NOX_SESSION"
-    value: "unit_langchain-3.9"
+    value: "unit_langchain-3.10"
 }
 
 # Run unit tests in parallel, splitting up by file

CONTRIBUTING.rst

@@ -22,7 +22,7 @@ In order to add a feature:
   documentation.
 
 - The feature must work fully on the following CPython versions:
-  3.9, 3.10, 3.11, 3.12, and 3.13 on both UNIX and Windows.
+  3.10, 3.11, 3.12, and 3.13 on both UNIX and Windows.
 
 - The feature must not add unnecessary dependencies (where
   "unnecessary" is of course subjective, but new dependencies should
@@ -146,10 +146,7 @@ Running System Tests
    $ nox -s system-3.9 -- -k <name of test>
 
 
-  .. note::
 
-      System tests are only configured to run under Python 3.9.
-      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
   auth settings and change some configuration in your project to
@@ -195,11 +192,11 @@ configure them just like the System Tests.
 
    # Run all tests in a folder
    $ cd samples/snippets
-   $ nox -s py-3.9
+   $ nox -s py-3.10
 
    # Run a single sample test
    $ cd samples/snippets
-   $ nox -s py-3.9 -- -k <name of test>
+   $ nox -s py-3.10 -- -k <name of test>
 
 ********************************************
 Note About ``README`` as it pertains to PyPI
@@ -221,13 +218,11 @@ Supported Python Versions
 
 We support:
 
--  `Python 3.9`_
 -  `Python 3.10`_
 -  `Python 3.11`_
 -  `Python 3.12`_
 -  `Python 3.13`_
 
-.. _Python 3.9: https://docs.python.org/3.9/
 .. _Python 3.10: https://docs.python.org/3.10/
 .. _Python 3.11: https://docs.python.org/3.11/
 .. _Python 3.12: https://docs.python.org/3.12/
@@ -239,7 +234,7 @@ Supported versions can be found in our ``noxfile.py`` `config`_.
 .. _config: https://github.com/googleapis/python-aiplatform/blob/main/noxfile.py
 
 
-We also explicitly decided to support Python 3 beginning with version 3.9.
+We also explicitly decided to support Python 3 beginning with version 3.10.
 Reasons for this include:
 
 -  Encouraging use of newest versions of Python 3

README.rst

@@ -319,7 +319,7 @@ In order to use this library, you first need to go through the following steps:
 
 Supported Python Versions
 ^^^^^^^^^^^^^^^^^^^^^^^^^
-Python >= 3.9
+Python >= 3.10
 
 Deprecated Python Versions
 ^^^^^^^^^^^^^^^^^^^^^^^^^^

google/cloud/aiplatform_v1/__init__.py

@@ -1109,7 +1109,7 @@
                 + 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}.",
+                + f"least to Python 3.10, and then update {_package_label}.",
                 FutureWarning,
             )
         if sys.version_info[:2] == (3, 9):

google/cloud/aiplatform_v1beta1/__init__.py

@@ -1342,7 +1342,7 @@
                 + 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}.",
+                + f"least to Python 3.10, and then update {_package_label}.",
                 FutureWarning,
             )
         if sys.version_info[:2] == (3, 9):

noxfile.py

@@ -53,10 +53,10 @@
     "recommonmark",
 )
 
-UNIT_TEST_PYTHON_VERSIONS = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
-UNIT_TEST_LANGCHAIN_PYTHON_VERSIONS = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
-UNIT_TEST_AG2_PYTHON_VERSIONS = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
-UNIT_TEST_LLAMA_INDEX_PYTHON_VERSIONS = ["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"]
+UNIT_TEST_LANGCHAIN_PYTHON_VERSIONS = ["3.10", "3.11", "3.12", "3.13", "3.14"]
+UNIT_TEST_AG2_PYTHON_VERSIONS = ["3.10", "3.11", "3.12", "3.13", "3.14"]
+UNIT_TEST_LLAMA_INDEX_PYTHON_VERSIONS = ["3.10", "3.11", "3.12", "3.13", "3.14"]
 PYTHON_TO_RAY_VERSIONS = {
     "3.10": ["2.9.3", "2.33.0", "2.42.0"],
     "3.11": ["2.42.0", "2.47.1"],
@@ -459,7 +459,7 @@ def cover(session):
     session.run("coverage", "erase")
 
 
-@nox.session(python="3.9", venv_backend="virtualenv")
+@nox.session(python=DEFAULT_PYTHON_VERSION, venv_backend="virtualenv")
 def docs(session):
     """Build the docs for this library."""
 
@@ -519,7 +519,7 @@ def docfx(session):
     )
 
 
-@nox.session(python="3.9", venv_backend="virtualenv")
+@nox.session(python=DEFAULT_PYTHON_VERSION, venv_backend="virtualenv")
 def gemini_docs(session):
     """Build the docs for library related to Gemini."""
 
@@ -590,9 +590,7 @@ def prerelease_deps(session):
     # version, the first version we test with in the unit tests sessions has a
     # constraints file containing all dependencies and extras.
     with open(
-        CURRENT_DIRECTORY
-        / "testing"
-        / f"constraints-{UNIT_TEST_PYTHON_VERSIONS[0]}.txt",
+        CURRENT_DIRECTORY / "testing" / "constraints-3.10.txt",
         encoding="utf-8",
     ) as constraints_file:
         constraints_text = constraints_file.read()

owlbot.py

@@ -98,8 +98,8 @@
 
     templated_files = common.py_library(
         cov_level=98,
-        system_test_python_versions=["3.9"],
-        unit_test_python_versions=["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"],
+        system_test_python_versions=["3.10"],
+        unit_test_python_versions=["3.10", "3.11", "3.12", "3.13", "3.14"],
         unit_test_extras=["testing"],
         system_test_extras=["testing"],
         microgenerator=True,
@@ -122,12 +122,10 @@
             ".kokoro/samples/python3.8/**",
             # exclude sample configs so periodic samples are tested against main
             # instead of pypi
-            ".kokoro/samples/python3.9/common.cfg",
             ".kokoro/samples/python3.10/common.cfg",
             ".kokoro/samples/python3.11/common.cfg",
             ".kokoro/samples/python3.12/common.cfg",
             ".kokoro/samples/python3.13/common.cfg",
-            ".kokoro/samples/python3.9/periodic.cfg",
             ".kokoro/samples/python3.10/periodic.cfg",
             ".kokoro/samples/python3.11/periodic.cfg",
             ".kokoro/samples/python3.12/periodic.cfg",
@@ -164,7 +162,7 @@
 
     s.replace(
         ".kokoro/test-samples-impl.sh",
-        "python3.9",
+        "python3.10",
         "python3",
     )
 

pypi/_vertex_ai_placeholder/pyproject.toml

@@ -11,7 +11,7 @@ authors = [
 license = {text = "Apache 2.0"}
 description = "Please run pip install vertexai to use the Vertex SDK."
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 
 [project.urls]
 repository = "https://github.com/googleapis/python-aiplatform.git"

pypi/_vertex_ai_placeholder/setup.py

@@ -236,7 +236,6 @@
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",

setup.py

@@ -351,14 +351,13 @@
         "llama_index": llama_index_extra_require,
         "llama_index_testing": llama_index_testing_extra_require,
     },
-    python_requires=">=3.9",
+    python_requires=">=3.10",
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Intended Audience :: Developers",
         "Operating System :: OS Independent",
         "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",

tests/system/aiplatform/test_project_id_inference.py

@@ -50,7 +50,7 @@ def test_project_id_inference(self, shared_state):
                 "machine_spec": {"machine_type": "n1-standard-4"},
                 "replica_count": 1,
                 "container_spec": {
-                    "image_uri": "python:3.9",
+                    "image_uri": "python:3.10",
                     "command": [
                         "sh",
                         "-exc",

tests/unit/aiplatform/test_explain_lit.py

@@ -340,7 +340,7 @@ def test_create_lit_model_from_tensorflow_returns_model(self, set_up_sequential)
 
     @pytest.mark.skipif(
         sys.version_info < (3, 11),
-        reason=("temporarily skipped due to failures in python 3.9 and 3.10"),
+        reason=("temporarily skipped due to failures in python 3.10"),
     )
     @mock.patch.dict(os.environ, {"LIT_PROXY_URL": "auto"})
     @pytest.mark.usefixtures(
@@ -622,7 +622,7 @@ def test_set_up_and_open_lit(
 
     @pytest.mark.skipif(
         sys.version_info < (3, 11),
-        reason=("temporarily skipped due to failures in python 3.9 and 3.10"),
+        reason=("temporarily skipped due to failures in python 3.10"),
     )
     @pytest.mark.usefixtures("init_lit_widget_mock")
     @mock.patch.dict(os.environ, {"LIT_PROXY_URL": "auto"})

vertexai/agent_engines/_agent_engines.py

@@ -53,7 +53,7 @@
 
 
 _LOGGER = _utils.LOGGER
-_SUPPORTED_PYTHON_VERSIONS = ("3.9", "3.10", "3.11", "3.12", "3.13", "3.14")
+_SUPPORTED_PYTHON_VERSIONS = ("3.10", "3.11", "3.12", "3.13", "3.14")
 _DEFAULT_GCS_DIR_NAME = "agent_engine"
 _BLOB_FILENAME = "agent_engine.pkl"
 _REQUIREMENTS_FILE = "requirements.txt"
@@ -1778,7 +1778,7 @@ async def _method(self, **kwargs) -> Any:
         factory = ClientFactory(config)
         client = factory.create(a2a_agent_card)
 
-        # kokoro job uses python 3.9, replaced match with if else.
+        # kokoro job uses python 3.10, replaced match with if else.
         if method_name == "on_message_send":
             response = client.send_message(Message(**kwargs))
             chunks = []

vertexai/reasoning_engines/_reasoning_engines.py

@@ -48,7 +48,7 @@
 
 
 _LOGGER = base.Logger(__name__)
-_SUPPORTED_PYTHON_VERSIONS = ("3.9", "3.10", "3.11", "3.12", "3.13", "3.14")
+_SUPPORTED_PYTHON_VERSIONS = ("3.10", "3.11", "3.12", "3.13", "3.14")
 _DEFAULT_GCS_DIR_NAME = "reasoning_engine"
 _BLOB_FILENAME = "reasoning_engine.pkl"
 _REQUIREMENTS_FILE = "requirements.txt"
@@ -224,7 +224,7 @@ def create(
                 use for staging the artifacts needed.
             sys_version (str):
                 Optional. The Python system version used. Currently supports any
-                of "3.9", "3.10", "3.11", "3.12", "3.13". If not specified,
+                of "3.10", "3.11", "3.12", "3.13". If not specified,
                 it defaults to the "{major}.{minor}" attributes of
                 sys.version_info.
             extra_packages (Sequence[str]):