build: drop python 3.8

.github/workflows/test.yml

@@ -32,7 +32,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         os: [ubuntu-latest, macos-latest, windows-latest]
         compile: [true, false]
         include:
@@ -65,14 +65,14 @@ jobs:
       matrix:
         python-version: ["3.10"]
         os: [macos-latest, windows-latest]
-        qt: [PyQt5, PyQt6, PySide2, PySide6]
+        qt: [PyQt5, PyQt6, PySide6]
         compile: [true, false]
-        exclude:
-          - os: macos-latest
-            qt: PySide2
         include:
           - os: macos-13
-            qt: PySide2
+            qt: "PySide2 'numpy<2'"
+          - os: windows-latest
+            python-version: "3.9"
+            qt: "PySide2 'numpy<2'"
 
   upload_coverage:
     if: always()

asv.conf.json

@@ -10,7 +10,7 @@
   "show_commit_url": "https://github.com/pyapp-kit/psygnal/commit/",
   "pythons": ["3.11"],
   "build_command": [
-    "python -m pip install build 'hatchling==1.21.1' hatch-vcs hatch-mypyc mypy pydantic types-attrs msgspec",
+    "python -m pip install build 'hatchling==1.21.1' hatch-vcs hatch-mypyc mypy pydantic!=2.10.0 types-attrs msgspec",
     "python -c \"import os; from pathlib import Path; import hatchling.builders.wheel as h; p = Path(h.__file__); targ = os.environ.get('MACOSX_DEPLOYMENT_TARGET', '10_16').replace('.', '_'); txt = p.read_text().replace('10_16', targ); p.write_text(txt)\"",
     "python -m build --wheel -o {build_cache_dir} {build_dir} --no-isolation"
   ],

pyproject.toml

@@ -8,15 +8,14 @@ build-backend = "hatchling.build"
 name = "psygnal"
 description = "Fast python callback/event system modeled after Qt Signals"
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = { text = "BSD 3-Clause License" }
 authors = [{ name = "Talley Lambert", email = "[email protected]" }]
 classifiers = [
     "Development Status :: 4 - Beta",
     "License :: OSI Approved :: BSD License",
     "Natural Language :: English",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
@@ -95,7 +94,7 @@ dependencies = [
     "hatch-mypyc>=0.13.0",
     "mypy>=0.991",
     "mypy_extensions >=0.4.2",
-    "pydantic",
+    "pydantic!=2.10.0",
     "types-attrs",
     "msgspec",
 ]
@@ -112,7 +111,7 @@ exclude = [
 [tool.cibuildwheel]
 # Skip 32-bit builds & PyPy wheels on all platforms
 skip = ["*-manylinux_i686", "*-musllinux_i686", "*-win32", "pp*"]
-build = ["cp38-*", "cp39-*", "cp310-*", "cp311-*", "cp312-*"]
+build = ["cp39-*", "cp310-*", "cp311-*", "cp312-*", "cp313-*"]
 test-extras = ["test"]
 test-command = "pytest {project}/tests -v"
 test-skip = ["*-musllinux*", "cp312-win*", "*-macosx_arm64"]
@@ -128,7 +127,7 @@ HATCH_BUILD_HOOKS_ENABLE = "1"
 # https://docs.astral.sh/ruff/
 [tool.ruff]
 line-length = 88
-target-version = "py37"
+target-version = "py39"
 src = ["src", "tests"]
 
 [tool.ruff.lint]
@@ -150,7 +149,7 @@ select = [
     "RUF",  # ruff-specific rules
 ]
 ignore = [
-    "D401",   # First line should be in imperative mood
+    "D401", # First line should be in imperative mood
 ]
 
 [tool.ruff.lint.per-file-ignores]
@@ -168,9 +167,9 @@ testpaths = ["tests"]
 filterwarnings = [
     "error",
     "ignore:The distutils package is deprecated:DeprecationWarning:",
-    "ignore:.*BackendFinder.find_spec()",                             # pyinstaller import
+    "ignore:.*BackendFinder.find_spec()",                                            # pyinstaller import
     "ignore:.*not using a cooperative constructor:pytest.PytestDeprecationWarning:",
-    "ignore:Failed to disconnect::pytestqt"
+    "ignore:Failed to disconnect::pytestqt",
 ]
 
 # https://mypy.readthedocs.io/en/stable/config_file.html

src/psygnal/_dataclass_utils.py

@@ -4,9 +4,11 @@
 import dataclasses
 import sys
 import types
-from typing import TYPE_CHECKING, Any, Iterator, List, Protocol, cast, overload
+from typing import TYPE_CHECKING, Any, Protocol, cast, overload
 
 if TYPE_CHECKING:
+    from collections.abc import Iterator
+
     import attrs
     import msgspec
     from pydantic import BaseModel
@@ -22,7 +24,7 @@ class _DataclassParams(Protocol):
     frozen: bool
 
 
-GenericAlias = getattr(types, "GenericAlias", type(List[int]))  # safe for < py 3.9
+GenericAlias = getattr(types, "GenericAlias", type(list[int]))  # safe for < py 3.9
 
 
 class AttrsType:

src/psygnal/_evented_decorator.py

@@ -1,10 +1,12 @@
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, Callable, Literal, Mapping, TypeVar, overload
+from typing import TYPE_CHECKING, Callable, Literal, TypeVar, overload
 
 from psygnal._group_descriptor import SignalGroupDescriptor
 
 if TYPE_CHECKING:
+    from collections.abc import Mapping
+
     from psygnal._group_descriptor import EqOperator, FieldAliasFunc
 
 __all__ = ["evented"]

src/psygnal/_evented_model.py

@@ -1,17 +1,13 @@
 import sys
 import warnings
+from collections.abc import Iterator, Mapping
 from contextlib import contextmanager, suppress
 from typing import (
     TYPE_CHECKING,
     Any,
     Callable,
     ClassVar,
-    Dict,
-    Iterator,
-    Mapping,
     NamedTuple,
-    Set,
-    Type,
     Union,
     cast,
     no_type_check,
@@ -111,8 +107,8 @@ def _return2(x: str, y: "Signature") -> "Signature":
 if not PYDANTIC_V1:
 
     def _get_defaults(
-        obj: Union[pydantic.BaseModel, Type[pydantic.BaseModel]],
-    ) -> Dict[str, Any]:
+        obj: Union[pydantic.BaseModel, type[pydantic.BaseModel]],
+    ) -> dict[str, Any]:
         """Get possibly nested default values for a Model object."""
         dflt = {}
         for k, v in obj.model_fields.items():
@@ -129,7 +125,7 @@ def _get_defaults(
     def _get_config(cls: pydantic.BaseModel) -> "ConfigDict":
         return cls.model_config
 
-    def _get_fields(cls: pydantic.BaseModel) -> Dict[str, pydantic.fields.FieldInfo]:
+    def _get_fields(cls: pydantic.BaseModel) -> dict[str, pydantic.fields.FieldInfo]:
         return cls.model_fields
 
     def _model_dump(obj: pydantic.BaseModel) -> dict:
@@ -147,7 +143,7 @@ def _is_pydantic_descriptor_proxy(obj: Any) -> "TypeGuard[PydanticDescriptorProx
 else:
 
     @no_type_check
-    def _get_defaults(obj: pydantic.BaseModel) -> Dict[str, Any]:
+    def _get_defaults(obj: pydantic.BaseModel) -> dict[str, Any]:
         """Get possibly nested default values for a Model object."""
         dflt = {}
         for k, v in obj.__fields__.items():
@@ -169,11 +165,11 @@ def _get_config(cls: type) -> "ConfigDict":
         return GetAttrAsItem(cls.__config__)
 
     class FieldInfo(NamedTuple):
-        annotation: Union[Type[Any], None]
+        annotation: Union[type[Any], None]
         frozen: Union[bool, None]
 
     @no_type_check
-    def _get_fields(cls: type) -> Dict[str, FieldInfo]:
+    def _get_fields(cls: type) -> dict[str, FieldInfo]:
         return {
             k: FieldInfo(annotation=f.type_, frozen=not f.field_info.allow_mutation)
             for k, f in cls.__fields__.items()
@@ -214,7 +210,7 @@ class EventedMetaclass(pydantic_main.ModelMetaclass):
     when each instance of an ``EventedModel`` is instantiated).
     """
 
-    __property_setters__: Dict[str, property]
+    __property_setters__: dict[str, property]
 
     @no_type_check
     def __new__(
@@ -308,7 +304,7 @@ def __new__(
 
 def _get_field_dependents(
     cls: "EventedMetaclass", model_config: dict, model_fields: dict
-) -> Dict[str, Set[str]]:
+) -> dict[str, set[str]]:
     """Return mapping of field name -> dependent set of property names.
 
     Dependencies may be declared in the Model Config to emit an event
@@ -332,7 +328,7 @@ def c(self, val: Sequence[int]):
             class Config:
                 field_dependencies={'c': ['a', 'b']}
     """
-    deps: Dict[str, Set[str]] = {}
+    deps: dict[str, set[str]] = {}
 
     cfg_deps = model_config.get(FIELD_DEPENDENCIES, {})  # sourcery skip
     if not cfg_deps:
@@ -464,15 +460,15 @@ class Config:
     _events: ClassVar[SignalGroup] = PrivateAttr()
 
     # mapping of name -> property obj for methods that are property setters
-    __property_setters__: ClassVar[Dict[str, property]]
+    __property_setters__: ClassVar[dict[str, property]]
     # mapping of field name -> dependent set of property names
     # when field is changed, an event for dependent properties will be emitted.
-    __field_dependents__: ClassVar[Dict[str, Set[str]]]
-    __eq_operators__: ClassVar[Dict[str, "EqOperator"]]
+    __field_dependents__: ClassVar[dict[str, set[str]]]
+    __eq_operators__: ClassVar[dict[str, "EqOperator"]]
     __slots__ = {"__weakref__"}
-    __signal_group__: ClassVar[Type[SignalGroup]]
-    _changes_queue: Dict[str, Any] = PrivateAttr(default_factory=dict)
-    _primary_changes: Set[str] = PrivateAttr(default_factory=set)
+    __signal_group__: ClassVar[type[SignalGroup]]
+    _changes_queue: dict[str, Any] = PrivateAttr(default_factory=dict)
+    _primary_changes: set[str] = PrivateAttr(default_factory=set)
     _delay_check_semaphore: int = PrivateAttr(0)
 
     if PYDANTIC_V1:
@@ -496,7 +492,7 @@ def events(self) -> SignalGroup:
         return self._events
 
     @property
-    def _defaults(self) -> Dict[str, Any]:
+    def _defaults(self) -> dict[str, Any]:
         return _get_defaults(self)
 
     def __eq__(self, other: Any) -> bool:

src/psygnal/_exceptions.py

@@ -3,11 +3,13 @@
 import inspect
 from contextlib import suppress
 from pathlib import Path
-from typing import TYPE_CHECKING, Any, Sequence
+from typing import TYPE_CHECKING, Any
 
 import psygnal
 
 if TYPE_CHECKING:
+    from collections.abc import Sequence
+
     from ._signal import SignalInstance
 
 

src/psygnal/_group.py

@@ -17,11 +17,7 @@
     Any,
     Callable,
     ClassVar,
-    ContextManager,
-    Iterable,
-    Iterator,
     Literal,
-    Mapping,
     NamedTuple,
     overload,
 )
@@ -32,6 +28,8 @@
 
 if TYPE_CHECKING:
     import threading
+    from collections.abc import Iterable, Iterator, Mapping
+    from contextlib import AbstractContextManager
 
     from psygnal._signal import F, ReducerFunc
     from psygnal._weak_callback import RefErrorChoice, WeakCallback
@@ -175,7 +173,7 @@ def unblock(self) -> None:
 
     def blocked(
         self, exclude: Iterable[str | SignalInstance] = ()
-    ) -> ContextManager[None]:
+    ) -> AbstractContextManager[None]:
         """Context manager to temporarily block all emitters in this group.
 
         Parameters
@@ -526,7 +524,7 @@ def unblock(self) -> None:
 
     def blocked(
         self, exclude: Iterable[str | SignalInstance] = ()
-    ) -> ContextManager[None]:
+    ) -> AbstractContextManager[None]:
         return self._psygnal_relay.blocked(exclude=exclude)
 
     def pause(self) -> None:
@@ -537,7 +535,7 @@ def resume(self, reducer: ReducerFunc | None = None, initial: Any = _NULL) -> No
 
     def paused(
         self, reducer: ReducerFunc | None = None, initial: Any = _NULL
-    ) -> ContextManager[None]:
+    ) -> AbstractContextManager[None]:
         return self._psygnal_relay.paused(reducer=reducer, initial=initial)
 
 

src/psygnal/_group_descriptor.py

@@ -11,11 +11,8 @@
     Any,
     Callable,
     ClassVar,
-    Iterable,
     Literal,
-    Mapping,
     Optional,
-    Type,
     TypeVar,
     cast,
     overload,
@@ -27,6 +24,7 @@
 
 if TYPE_CHECKING:
     from _weakref import ref as ref
+    from collections.abc import Iterable, Mapping
 
     from typing_extensions import TypeAlias
 
@@ -38,7 +36,7 @@
 __all__ = ["is_evented", "get_evented_namespace", "SignalGroupDescriptor"]
 
 
-T = TypeVar("T", bound=Type)
+T = TypeVar("T", bound=type)
 S = TypeVar("S")
 
 

src/psygnal/_pyinstaller_util/_pyinstaller_hook.py

@@ -1,8 +1,7 @@
 from pathlib import Path
-from typing import List
 
 CURRENT_DIR = Path(__file__).parent
 
 
-def get_hook_dirs() -> List[str]:
+def get_hook_dirs() -> list[str]:
     return [str(CURRENT_DIR)]

src/psygnal/_pyinstaller_util/hook-psygnal.py

@@ -1,7 +1,8 @@
+from collections.abc import Iterable
 from importlib.metadata import PackageNotFoundError, PackagePath
 from importlib.metadata import files as package_files
 from pathlib import Path
-from typing import Iterable, List, Union
+from typing import Union
 
 try:
     import psygnal
@@ -11,11 +12,11 @@
     PSYGNAL_DIR = Path(__file__).parent.parent
 
 
-def binary_files(file_list: Iterable[Union[PackagePath, Path]]) -> List[Path]:
+def binary_files(file_list: Iterable[Union[PackagePath, Path]]) -> list[Path]:
     return [Path(file) for file in file_list if file.suffix in {".so", ".pyd"}]
 
 
-def create_hiddenimports() -> List[str]:
+def create_hiddenimports() -> list[str]:
     res = ["queue", "mypy_extensions", "__future__"]
 
     try: