build: Remove support for Python 3.10

.copier-answers.yml

@@ -15,7 +15,7 @@ author_email: oliver.borchert@quantco.com
 author_name: Oliver Borchert
 github_url: https://github.com/quantco/dataframely
 github_user: borchero
-minimal_python_version: py310
+minimal_python_version: py311
 project_short_description: A declarative, polars-native data frame validation library
 project_slug: dataframely
 use_devcontainer: false

.github/workflows/build.yml

@@ -85,7 +85,7 @@ jobs:
         uses: PyO3/maturin-action@e83996d129638aa358a18fbd1dfb82f0b0fb5d3b # v1.51.0 # zizmor: ignore[cache-poisoning]
         with:
           command: build
-          args: --out dist --release -i python3.10
+          args: --out dist --release -i python3.11
           manylinux: auto
           # NOTE: We also need to set up cargo-auditable inside the docker container
           # where the linux build is performed.

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Set up pixi
         uses: prefix-dev/setup-pixi@d3f436a425481402e6a95a1d1fc10331c708cd9e # v0.10.2
         with:
-          environments: default default-py310
+          environments: default default-py311
       - name: Install Rust
         run: rustup show
       - name: Cache Rust dependencies
@@ -44,7 +44,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        environment: [py310, py311, py312, py313, py314]
+        environment: [py311, py312, py313, py314]
         with_optionals: [false]
         include:
           # Test with optional dependencies across OSes

.lefthook.yaml

@@ -9,7 +9,7 @@ pre-commit:
     - assets/**/*
   jobs:
     - name: pixi-install
-      run: pixi install
+      run: pixi install -e default -e default-py311
     - group:
         parallel: true
         jobs:
@@ -21,7 +21,7 @@ pre-commit:
             run: pixi {run} ruff format --force-exclude
           - name: mypy
             glob: "*.py"
-            run: pixi {run} -e default-py310 mypy {staged_files}
+            run: pixi {run} -e default-py311 mypy {staged_files}
           - name: prettier
             glob: "*.{md,yml,yaml}"
             run: pixi {run} prettier --write --no-error-on-unmatched-pattern --list-different --ignore-unknown {staged_files}

Cargo.toml

@@ -15,7 +15,7 @@ polars = { version = ">=0.50", default-features = false, features = [
 ] }
 polars-arrow = ">=0.50"
 polars-core = ">=0.50"
-pyo3 = { version = ">=0.25", features = ["abi3-py310", "extension-module"] }
+pyo3 = { version = ">=0.25", features = ["abi3-py311", "extension-module"] }
 pyo3-polars = { version = ">=0.23.1", features = ["derive", "dtype-full"] }
 rand = { version = "0.9", features = ["std_rng"] }
 rayon = "*"

dataframely/_base_schema.py

@@ -3,13 +3,12 @@
 
 from __future__ import annotations
 
-import sys
 import textwrap
 from abc import ABCMeta
 from collections.abc import Mapping
 from copy import copy
 from dataclasses import dataclass, field
-from typing import TYPE_CHECKING, Any
+from typing import TYPE_CHECKING, Any, Self
 
 import polars as pl
 
@@ -18,11 +17,6 @@
 from .columns import Column
 from .exc import ImplementationError
 
-if sys.version_info >= (3, 11):
-    from typing import Self
-else:
-    from typing_extensions import Self
-
 _COLUMN_ATTR = "__dataframely_columns__"
 _RULE_ATTR = "__dataframely_rules__"
 

dataframely/_deprecation.py

@@ -37,22 +37,19 @@ def issue_deprecation_warning(message: str, *, version: str = "") -> None:
 if sys.version_info >= (3, 13):
     from warnings import deprecated
 else:
-    try:
-        from typing_extensions import deprecated
-    except ImportError:  # pragma: no cover
 
-        def deprecated(  # type: ignore[no-redef]
-            message: str,
-        ) -> Callable[[Callable[P, T]], Callable[P, T]]:
-            """Fallback for :func:`warnings.deprecated` without :pep:`702` support."""
+    def deprecated(
+        message: str,
+    ) -> Callable[[Callable[P, T]], Callable[P, T]]:
+        """Fallback for :func:`warnings.deprecated` without :pep:`702` support."""
 
-            def decorate(function: Callable[P, T]) -> Callable[P, T]:
-                @wraps(function)
-                def wrapper(*args: P.args, **kwargs: P.kwargs) -> T:
-                    issue_deprecation_warning(message)
-                    return function(*args, **kwargs)
+        def decorate(function: Callable[P, T]) -> Callable[P, T]:
+            @wraps(function)
+            def wrapper(*args: P.args, **kwargs: P.kwargs) -> T:
+                issue_deprecation_warning(message)
+                return function(*args, **kwargs)
 
-                wrapper.__deprecated__ = message  # type: ignore[attr-defined]
-                return wrapper
+            wrapper.__deprecated__ = message  # type: ignore[attr-defined]
+            return wrapper
 
-            return decorate
+        return decorate

dataframely/_rule.py

@@ -3,17 +3,11 @@
 
 from __future__ import annotations
 
-import sys
 from collections.abc import Callable
-from typing import Any
+from typing import Any, Self
 
 import polars as pl
 
-if sys.version_info >= (3, 11):
-    from typing import Self
-else:
-    from typing_extensions import Self
-
 ValidationFunction = Callable[[Any], pl.Expr]
 
 

dataframely/collection/_base.py

@@ -9,7 +9,7 @@
 from abc import ABCMeta
 from collections.abc import Iterable, Mapping
 from dataclasses import dataclass, field
-from typing import Annotated, Any, cast, get_args, get_origin
+from typing import Annotated, Any, Self, cast, get_args, get_origin
 
 import polars as pl
 
@@ -20,11 +20,6 @@
 from dataframely.exc import AnnotationImplementationError, ImplementationError
 from dataframely.schema import Schema
 
-if sys.version_info >= (3, 11):
-    from typing import Self
-else:
-    from typing_extensions import Self
-
 if sys.version_info >= (3, 14):
     from annotationlib import Format
 

dataframely/collection/collection.py

@@ -4,13 +4,12 @@
 from __future__ import annotations
 
 import os
-import sys
 import textwrap
 from abc import ABC
 from collections.abc import Callable, Mapping, Sequence
 from dataclasses import asdict
 from pathlib import Path
-from typing import Any, Concatenate, Literal, ParamSpec, TypeVar, cast
+from typing import Any, Concatenate, Literal, ParamSpec, Self, TypeVar, cast
 
 import polars as pl
 
@@ -25,11 +24,6 @@
 from ._base import BaseCollection
 from .filter_result import CollectionFilterResult
 
-if sys.version_info >= (3, 11):
-    from typing import Self
-else:
-    from typing_extensions import Self
-
 _FILTER_COLUMN_PREFIX = "__DATAFRAMELY_FILTER_COLUMN__"
 
 P = ParamSpec("P")

dataframely/collection/filter_result.py

@@ -4,20 +4,14 @@
 from __future__ import annotations
 
 import itertools
-import sys
-from typing import Any, Generic, TypeVar
+from typing import Any, Generic, NamedTuple, TypeVar
 
 import polars as pl
 
 from dataframely.filter_result import FailureInfo
 
 from ._base import BaseCollection
 
-if sys.version_info >= (3, 11):
-    from typing import NamedTuple
-else:
-    from typing_extensions import NamedTuple
-
 C = TypeVar("C", bound=BaseCollection)
 
 

dataframely/columns/_base.py

@@ -4,24 +4,18 @@
 from __future__ import annotations
 
 import inspect
-import sys
 import warnings
 from abc import ABC, abstractmethod
 from collections import Counter
 from collections.abc import Callable, Mapping, Sequence
-from typing import Annotated, Any, TypeAlias
+from typing import Annotated, Any, Self, TypeAlias
 
 import polars as pl
 
 from dataframely._compat import pydantic, sa, sa_TypeEngine
 from dataframely._polars import PolarsDataType
 from dataframely.random import Generator
 
-if sys.version_info >= (3, 11):
-    from typing import Self
-else:
-    from typing_extensions import Self
-
 Check: TypeAlias = (
     Callable[[pl.Expr], pl.Expr]
     | Sequence[Callable[[pl.Expr], pl.Expr]]

dataframely/columns/_mixins.py

@@ -1,9 +1,8 @@
 # Copyright (c) QuantCo 2025-2026
 # SPDX-License-Identifier: BSD-3-Clause
 
-import sys
 from collections.abc import Sequence
-from typing import TYPE_CHECKING, Any, Generic, Protocol, TypeVar
+from typing import TYPE_CHECKING, Any, Generic, Protocol, Self, TypeVar
 
 import polars as pl
 
@@ -14,10 +13,6 @@
 else:
     Base = object
 
-if sys.version_info >= (3, 11):
-    from typing import Self
-else:
-    from typing_extensions import Self
 
 # ----------------------------------- ORDINAL MIXIN ---------------------------------- #
 

dataframely/config.py

@@ -3,14 +3,8 @@
 
 import contextlib
 import os
-import sys
 from types import TracebackType
-from typing import Any, TypedDict, cast, get_type_hints
-
-if sys.version_info >= (3, 11):
-    from typing import Unpack
-else:
-    from typing_extensions import Unpack
+from typing import Any, TypedDict, Unpack, cast, get_type_hints
 
 
 class Options(TypedDict, total=False):

dataframely/filter_result.py

@@ -4,22 +4,16 @@
 from __future__ import annotations
 
 import json
-import sys
 from functools import cached_property
 from pathlib import Path
-from typing import IO, TYPE_CHECKING, Any, Generic, TypeVar
+from typing import IO, TYPE_CHECKING, Any, Generic, NamedTuple, TypeVar
 
 import polars as pl
 
 from dataframely._base_schema import BaseSchema
 
 from ._typing import DataFrame, LazyFrame
 
-if sys.version_info >= (3, 11):
-    from typing import NamedTuple
-else:
-    from typing_extensions import NamedTuple
-
 if TYPE_CHECKING:  # pragma: no cover
     from .schema import Schema
 

dataframely/random.py

@@ -201,7 +201,7 @@ def sample_choice(
             norm_weights = norm_weights / norm_weights.sum()
 
         samples = self.numpy_generator.choice(
-            choices,  # type: ignore
+            choices,  # type: ignore[arg-type]
             size=n,
             replace=True,
             p=norm_weights,

dataframely/schema.py

@@ -3,11 +3,10 @@
 
 from __future__ import annotations
 
-import sys
 import warnings
 from abc import ABC
 from collections.abc import Mapping, Sequence
-from typing import Any, Literal, overload
+from typing import Any, Literal, Self, overload
 
 import polars as pl
 
@@ -28,11 +27,6 @@
 from .filter_result import FailureInfo, FilterResult, LazyFilterResult
 from .random import Generator
 
-if sys.version_info >= (3, 11):
-    from typing import Self
-else:
-    from typing_extensions import Self
-
 _COLUMN_VALID = "__DATAFRAMELY_VALID__"