feat: add initial support for Python v3.14

.github/sync-repo-settings.yaml

@@ -21,6 +21,7 @@ branchProtectionRules:
     - 'Presubmit - Unit Tests Python 3.11'
     - 'Presubmit - Unit Tests Python 3.12'
     - 'Presubmit - Unit Tests Python 3.13'
+    - 'Presubmit - Unit Tests Python 3.14'
     - 'Presubmit - Unit Tests Ray 2.9.3'
     - 'Presubmit - Unit Tests Ray 2.33.0'
     - 'Presubmit - Unit Tests Ray 2.42.0 (Python 3.10)'

.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']
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
 
     steps:
       - name: Checkout code

.kokoro/presubmit/unit_3-14.cfg

@@ -0,0 +1,13 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Run unit tests for Python 3.14
+env_vars: {
+    key: "NOX_SESSION"
+    value: "unit-3.14"
+}
+
+# Run unit tests in parallel, splitting up by file
+env_vars: {
+    key: "PYTEST_ADDOPTS"
+    value: "-n=auto --dist=loadscope"
+}

noxfile.py

@@ -53,10 +53,10 @@
     "recommonmark",
 )
 
-UNIT_TEST_PYTHON_VERSIONS = ["3.9", "3.10", "3.11", "3.12", "3.13"]
-UNIT_TEST_LANGCHAIN_PYTHON_VERSIONS = ["3.9", "3.10", "3.11", "3.12", "3.13"]
-UNIT_TEST_AG2_PYTHON_VERSIONS = ["3.9", "3.10", "3.11", "3.12", "3.13"]
-UNIT_TEST_LLAMA_INDEX_PYTHON_VERSIONS = ["3.9", "3.10", "3.11", "3.12", "3.13"]
+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"]
 PYTHON_TO_RAY_VERSIONS = {
     "3.10": ["2.9.3", "2.33.0", "2.42.0"],
     "3.11": ["2.42.0", "2.47.1"],

owlbot.py

@@ -99,7 +99,7 @@
     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"],
+        unit_test_python_versions=["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"],
         unit_test_extras=["testing"],
         system_test_extras=["testing"],
         microgenerator=True,

setup.py

@@ -57,7 +57,7 @@
 lit_extra_require = [
     "tensorflow >= 2.3.0, <3.0.0; python_version<'3.13'",
     "pandas >= 1.0.0",
-    "lit-nlp == 0.4.0",
+    "lit-nlp == 0.4.0; python_version<'3.14'",
     "explainable-ai-sdk >= 1.0.0; python_version<'3.13'",
 ]
 featurestore_extra_require = [
@@ -249,7 +249,7 @@
         # aiohttp is required for async rest tests (need google-auth[aiohttp],
         # but can't specify extras in constraints files)
         "aiohttp",
-        "bigframes; python_version>='3.10'",
+        "bigframes; python_version>='3.10' and python_version<'3.14'",
         # google-api-core 2.x is required since kfp requires protobuf > 4
         "google-api-core >= 2.11, < 3.0.0",
         "grpcio-testing",
@@ -260,6 +260,7 @@
         "pytest-cov",
         "mock",
         "pytest-xdist",
+        "Pillow",
         "scikit-learn<1.6.0; python_version<='3.10'",
         "scikit-learn; python_version>'3.10'",
         # Lazy import requires > 2.12.0
@@ -356,6 +357,7 @@
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: 3.13",
+        "Programming Language :: Python :: 3.14",
         "Topic :: Internet",
         "Topic :: Software Development :: Libraries :: Python Modules",
     ],

testing/constraints-3.14.txt

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# This constraints file is required for unit tests.
+# List all library dependencies and extras in this file.
+google-api-core==2.21.0 # Tests google-api-core with rest async support
+google-auth==2.35.0 # Tests google-auth with rest async support
+proto-plus
+mock==4.0.2
+google-cloud-storage==2.10.0 # Increased for kfp 2.0 compatibility
+packaging==24.1 # Increased to unbreak canonicalize_version error (b/377774673)
+pytest-xdist==3.3.1 # Pinned to unbreak unit tests
+ray==2.5.0 # Pinned until 2.9.3 is verified for Ray tests
+ipython==8.22.2 # Pinned to unbreak TypeAliasType import error
+google-adk==0.0.2
+google-genai>=1.10.0
+google-vizier==0.1.21
+pyarrow>=18.0.0