feat: Add support for Python 3.15.

.github/workflows/import.yml

@@ -13,7 +13,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14', '3.15']
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
 
     steps:
       - name: Checkout repository

.github/workflows/mypy.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14', '3.15']
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
 
     steps:
       - name: Checkout code

google/genai/types.py

@@ -25,7 +25,7 @@
 import sys
 import types as builtin_types
 import typing
-from typing import Annotated, Any, Callable, Dict, List, Literal, Optional, Sequence, Union
+from typing import Annotated, Any, Callable, Dict, List, Literal, Optional, Sequence, Union, _UnionGenericAlias  # type: ignore
 import pydantic
 from pydantic import ConfigDict, Field, PrivateAttr, WrapValidator, model_validator
 from typing_extensions import Self, TypedDict
@@ -37,15 +37,14 @@
     _UploadToFileSearchStoreOperation_from_mldev,
 )
 
-if sys.version_info >= (3, 14):
-  # Union[t1, t2] and t1 | t2 both create builtin_types.UnionType, and
-  # typing._UnionGenericAlias is deprecated.
-  VersionedUnionType = builtin_types.UnionType
-  _UNION_TYPES = (typing.Union, builtin_types.UnionType)
-else:
+if sys.version_info >= (3, 10):
   # Supports both Union[t1, t2] and t1 | t2
-  VersionedUnionType = Union[builtin_types.UnionType, typing._UnionGenericAlias]  # type: ignore
+  VersionedUnionType = Union[builtin_types.UnionType, _UnionGenericAlias]
   _UNION_TYPES = (typing.Union, builtin_types.UnionType)
+else:
+  # Supports only Union[t1, t2]
+  VersionedUnionType = _UnionGenericAlias
+  _UNION_TYPES = (typing.Union,)
 
 _is_pillow_image_imported = False
 if typing.TYPE_CHECKING:

pyproject.toml

@@ -21,7 +21,6 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
-    "Programming Language :: Python :: 3.15",
     "Topic :: Internet",
     "Topic :: Software Development :: Libraries :: Python Modules",
 ]

requirements.txt

@@ -12,16 +12,13 @@ google-auth==2.56.0
 idna==3.18
 iniconfig==2.0.0
 packaging==24.2
-pillow==11.0.0; python_version < '3.15'
-pillow==12.3.0; python_version >= '3.15'
+pillow==11.0.0
 pluggy==1.5.0
 py==1.11.0
 pyasn1==0.6.1
 pyasn1_modules==0.4.1
-pydantic==2.12.0; python_version < '3.15'
-pydantic==2.14.1; python_version >= '3.15'
-pydantic_core==2.41.1; python_version < '3.15'
-pydantic_core==2.50.1; python_version >= '3.15'
+pydantic==2.12.0
+pydantic_core==2.41.1
 pyopenssl==24.2.1
 pytest==8.3.4
 pytest-asyncio==0.25.0