chore: move Concatenate/ParamSpec/overload from typing_extensions to typing

These three names live in stdlib `typing` since Python 3.10, which is the
repo's supported minimum (`requires-python = ">=3.10"`). Only `Self`
still requires `typing_extensions` for 3.10 users, so keep that import
in place until 3.10 support drops.

Also drop `py39` from Black's `target-version` array and add `py314` --
py39 is below the supported minimum, py314 is already in the CI test
matrix.

No behavior change.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: jacalata

pyproject.toml

@@ -49,7 +49,7 @@ version = {attr = "versioneer.get_version"}
 
 [tool.black]
 line-length = 120
-target-version = ['py39', 'py310', 'py311', 'py312', 'py313']
+target-version = ['py310', 'py311', 'py312', 'py313', 'py314']
 force-exclude = "tableauserverclient/bin/*"
 
 [tool.mypy]

tableauserverclient/server/endpoint/endpoint.py

@@ -2,7 +2,6 @@
 import io
 import os
 from contextlib import closing
-from typing_extensions import Concatenate, ParamSpec
 from tableauserverclient import datetime_helpers as datetime
 
 import abc
@@ -12,8 +11,10 @@
 from typing import (
     Any,
     Callable,
+    Concatenate,
     Generic,
     Optional,
+    ParamSpec,
     TYPE_CHECKING,
     TypeVar,
     Union,

tableauserverclient/server/endpoint/jobs_endpoint.py

@@ -1,5 +1,6 @@
 import logging
-from typing_extensions import Self, overload
+from typing import overload
+from typing_extensions import Self
 
 
 from tableauserverclient.models import JobItem, BackgroundJobItem, PaginationItem

tableauserverclient/server/request_factory.py

@@ -1,12 +1,9 @@
 import xml.etree.ElementTree as ET
-from typing import Any, Callable, TypeVar, TYPE_CHECKING
+from typing import Any, Callable, Concatenate, ParamSpec, TypeVar, TYPE_CHECKING
 from collections.abc import Iterable
 
-from typing_extensions import ParamSpec
-
 from requests.packages.urllib3.fields import RequestField
 from requests.packages.urllib3.filepost import encode_multipart_formdata
-from typing_extensions import Concatenate
 
 from tableauserverclient.models import *