fix: Removing Python 3.9 support due to EOL

.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, in Python 3.10 to 3.13
 env_vars: {
     key: "NOX_SESSION"
     value: "unit"

.kokoro/docker/docs/Dockerfile

@@ -60,16 +60,16 @@ RUN apt-get update \
   && rm -rf /var/lib/apt/lists/* \
   && rm -f /var/cache/apt/archives/*.deb
 
-###################### Install python 3.9.13
+###################### Install python 3.10.20
 
-# Download python 3.9.13
-RUN wget https://www.python.org/ftp/python/3.9.13/Python-3.9.13.tgz
+# Download python 3.10.20
+RUN wget https://www.python.org/ftp/python/3.10.20/Python-3.10.20.tgz
 
 # Extract files
-RUN tar -xvf Python-3.9.13.tgz
+RUN tar -xvf Python-3.10.20.tgz
 
-# Install python 3.9.13
-RUN ./Python-3.9.13/configure --enable-optimizations
+# Install python 3.10.20
+RUN ./Python-3.10.20/configure --enable-optimizations
 RUN make altinstall
 
 ###################### Install pip
@@ -80,4 +80,4 @@ RUN wget -O /tmp/get-pip.py 'https://bootstrap.pypa.io/get-pip.py' \
 # Test pip
 RUN python3 -m pip
 
-CMD ["python3.9"]
+CMD ["python3.10"]

.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

README.rst

@@ -319,11 +319,11 @@ 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
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
-Python <= 3.8.
+Python <= 3.9.
 
 The last version of this library compatible with Python 3.8 is google-cloud-aiplatform==1.90.0.
 

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": ["2.33.0", "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="3.10", 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="3.10", venv_backend="virtualenv")
 def gemini_docs(session):
     """Build the docs for library related to Gemini."""
 

owlbot.py

@@ -83,7 +83,7 @@
             "noxfile.py",
             "testing",
             "docs/conf.py",
-            "*.tar.gz"
+            "*.tar.gz",
         ],
     )
     has_generator_updates = True
@@ -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",

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

@@ -358,14 +358,13 @@
         "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",

vertexai/_genai/types/common.py

@@ -8349,14 +8349,12 @@ class CreateAgentEngineConfig(_common.BaseModel):
       - If `source_packages` is specified, the agent framework will
         default to "custom".""",
     )
-    python_version: Optional[Literal["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]] = (
-        Field(
-            default=None,
-            description="""The Python version to be used for the Agent Engine.
+    python_version: Optional[Literal["3.10", "3.11", "3.12", "3.13", "3.14"]] = Field(
+        default=None,
+        description="""The Python version to be used for the Agent Engine.
       If not specified, it will use the current Python version of the environment.
-      Supported versions: "3.9", "3.10", "3.11", "3.12", "3.13", "3.14".
+      Supported versions: "3.10", "3.11", "3.12", "3.13", "3.14".
       """,
-        )
     )
     build_options: Optional[dict[str, list[str]]] = Field(
         default=None,
@@ -8496,10 +8494,10 @@ class CreateAgentEngineConfigDict(TypedDict, total=False):
       - If `source_packages` is specified, the agent framework will
         default to "custom"."""
 
-    python_version: Optional[Literal["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]]
+    python_version: Optional[Literal["3.10", "3.11", "3.12", "3.13", "3.14"]]
     """The Python version to be used for the Agent Engine.
       If not specified, it will use the current Python version of the environment.
-      Supported versions: "3.9", "3.10", "3.11", "3.12", "3.13", "3.14".
+      Supported versions: "3.10", "3.11", "3.12", "3.13", "3.14".
       """
 
     build_options: Optional[dict[str, list[str]]]
@@ -9018,14 +9016,12 @@ class UpdateAgentEngineConfig(_common.BaseModel):
       - If `source_packages` is specified, the agent framework will
         default to "custom".""",
     )
-    python_version: Optional[Literal["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]] = (
-        Field(
-            default=None,
-            description="""The Python version to be used for the Agent Engine.
+    python_version: Optional[Literal["3.10", "3.11", "3.12", "3.13", "3.14"]] = Field(
+        default=None,
+        description="""The Python version to be used for the Agent Engine.
       If not specified, it will use the current Python version of the environment.
-      Supported versions: "3.9", "3.10", "3.11", "3.12", "3.13", "3.14".
+      Supported versions: "3.10", "3.11", "3.12", "3.13", "3.14".
       """,
-        )
     )
     build_options: Optional[dict[str, list[str]]] = Field(
         default=None,
@@ -9170,10 +9166,10 @@ class UpdateAgentEngineConfigDict(TypedDict, total=False):
       - If `source_packages` is specified, the agent framework will
         default to "custom"."""
 
-    python_version: Optional[Literal["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]]
+    python_version: Optional[Literal["3.10", "3.11", "3.12", "3.13", "3.14"]]
     """The Python version to be used for the Agent Engine.
       If not specified, it will use the current Python version of the environment.
-      Supported versions: "3.9", "3.10", "3.11", "3.12", "3.13", "3.14".
+      Supported versions: "3.10", "3.11", "3.12", "3.13", "3.14".
       """
 
     build_options: Optional[dict[str, list[str]]]
@@ -17210,14 +17206,12 @@ class AgentEngineConfig(_common.BaseModel):
       - If `source_packages` is specified, the agent framework will
         default to "custom".""",
     )
-    python_version: Optional[Literal["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]] = (
-        Field(
-            default=None,
-            description="""The Python version to be used for the Agent Engine.
+    python_version: Optional[Literal["3.10", "3.11", "3.12", "3.13", "3.14"]] = Field(
+        default=None,
+        description="""The Python version to be used for the Agent Engine.
       If not specified, it will use the current Python version of the environment.
-      Supported versions: "3.9", "3.10", "3.11", "3.12", "3.13", "3.14".
+      Supported versions: "3.10", "3.11", "3.12", "3.13", "3.14".
       """,
-        )
     )
     build_options: Optional[dict[str, list[str]]] = Field(
         default=None,
@@ -17400,10 +17394,10 @@ class AgentEngineConfigDict(TypedDict, total=False):
       - If `source_packages` is specified, the agent framework will
         default to "custom"."""
 
-    python_version: Optional[Literal["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]]
+    python_version: Optional[Literal["3.10", "3.11", "3.12", "3.13", "3.14"]]
     """The Python version to be used for the Agent Engine.
       If not specified, it will use the current Python version of the environment.
-      Supported versions: "3.9", "3.10", "3.11", "3.12", "3.13", "3.14".
+      Supported versions: "3.10", "3.11", "3.12", "3.13", "3.14".
       """
 
     build_options: Optional[dict[str, list[str]]]

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"

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]):