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Drop support for NumPy 1.x and Python 3.10; test with Python 3.15 and NumPy 2.5 #277

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9fe0d59
Fix type checking with NumPy 2.5
apdavison Oct 13, 2026
b352cbd
Update supported Python and NumPy versions
apdavison Oct 13, 2026
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74 changes: 10 additions & 64 deletions .github/workflows/test.yml
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Expand Up @@ -12,41 +12,14 @@ jobs:
fail-fast: false
matrix:
os: [ ubuntu-latest ]
python-version: [ "3.10", "3.11", "3.12", "3.13", "3.14" ]
numpy-version: [ "1.24", "1.25", "1.26", "2.0", "2.1", "2.2", "2.3", "2.4" ]
python-version: [ "3.11", "3.12", "3.13", "3.14", "3.15" ]
numpy-version: [ "2.0", "2.1", "2.2", "2.3", "2.4", "2.5" ]
exclude:
- python-version: "3.10"
numpy-version: "2.3"
os: ubuntu-latest
- python-version: "3.10"
numpy-version: "2.4"
os: ubuntu-latest
- python-version: "3.11"
numpy-version: "2.4"
os: ubuntu-latest
- python-version: "3.12"
numpy-version: "1.24"
os: ubuntu-latest
- python-version: "3.12"
numpy-version: "1.25"
os: ubuntu-latest
- python-version: "3.13"
numpy-version: "1.24"
os: ubuntu-latest
- python-version: "3.13"
numpy-version: "1.25"
os: ubuntu-latest
- python-version: "3.13"
numpy-version: "1.26"
os: ubuntu-latest
- python-version: "3.14"
numpy-version: "1.24"
os: ubuntu-latest
- python-version: "3.14"
numpy-version: "1.25"
os: ubuntu-latest
- python-version: "3.14"
numpy-version: "1.26"
- python-version: "3.11"
numpy-version: "2.5"
os: ubuntu-latest
steps:
- uses: actions/checkout@v4
Expand Down Expand Up @@ -76,7 +49,7 @@ jobs:
python -m pip install -U setuptools
python -m pip install -U wheel
python -m pip install -U pytest
python -m pip install "numpy==${{ matrix.numpy-version }}"
python -m pip install "numpy==${{ matrix.numpy-version }}.*"

- name: Install
run: |
Expand All @@ -93,41 +66,14 @@ jobs:
fail-fast: false
matrix:
os: [ ubuntu-latest ]
python-version: [ "3.10", "3.11", "3.12", "3.13", "3.14" ]
numpy-version: [ "1.24", "1.25", "1.26", "2.0", "2.1", "2.2", "2.3", "2.4" ]
python-version: [ "3.11", "3.12", "3.13", "3.14", "3.15" ]
numpy-version: [ "2.0", "2.1", "2.2", "2.3", "2.4", "2.5" ]
exclude:
- python-version: "3.10"
numpy-version: "2.3"
os: ubuntu-latest
- python-version: "3.10"
numpy-version: "2.4"
os: ubuntu-latest
- python-version: "3.11"
numpy-version: "2.4"
os: ubuntu-latest
- python-version: "3.12"
numpy-version: "1.24"
os: ubuntu-latest
- python-version: "3.12"
numpy-version: "1.25"
os: ubuntu-latest
- python-version: "3.13"
numpy-version: "1.24"
os: ubuntu-latest
- python-version: "3.13"
numpy-version: "1.25"
os: ubuntu-latest
- python-version: "3.13"
numpy-version: "1.26"
os: ubuntu-latest
- python-version: "3.14"
numpy-version: "1.24"
os: ubuntu-latest
- python-version: "3.14"
numpy-version: "1.25"
os: ubuntu-latest
- python-version: "3.14"
numpy-version: "1.26"
- python-version: "3.11"
numpy-version: "2.5"
os: ubuntu-latest
steps:
- uses: actions/checkout@v4
Expand Down Expand Up @@ -156,7 +102,7 @@ jobs:
python -m pip install -U pip
python -m pip install -U setuptools
python -m pip install -U wheel
python -m pip install "numpy==${{ matrix.numpy-version }}"
python -m pip install "numpy==${{ matrix.numpy-version }}.*"
python -m pip install -U pytest
python -m pip install -U mypy

Expand Down
2 changes: 2 additions & 0 deletions CHANGES.txt
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Expand Up @@ -8,6 +8,8 @@ Unreleased

- Correct the pond force unit to 0.00980665 N (one gram-force); it was
previously 1000 times too large (`#44 <https://github.com/python-quantities/python-quantities/issues/44>`_).
- Fix type checking with NumPy 2.5
- Add CI testing for Python 3.15 and NumPy 2.5, drop support for Python 3.10 and for NumPy 1.x (following NEP 29 plus one year)

------
0.16.4
Expand Down
4 changes: 2 additions & 2 deletions doc/user/installation.rst
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Expand Up @@ -8,8 +8,8 @@ Prerequisites

Quantities has a few dependencies:

* Python_ (>=3.8)
* NumPy_ (>=1.19)
* Python_ (>=3.11)
* NumPy_ (>=2.0)

(bearing in mind that not all combinations of Python and NumPy versions necessarily work).

Expand Down
6 changes: 3 additions & 3 deletions pyproject.toml
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Expand Up @@ -2,7 +2,7 @@
name = "quantities"
description = "Support for physical quantities with units, based on numpy"
readme = "README.rst"
requires-python = ">=3.10"
requires-python = ">=3.11"
license-files = ["doc/user/license.rst"]
authors = [
{name = "Darren Dale", email = "[email protected]"}
Expand All @@ -24,7 +24,7 @@ classifiers = [
"Topic :: Scientific/Engineering"
]
dependencies = [
"numpy>=1.24"
"numpy>=2.0"
]
dynamic = ["version"]

Expand Down Expand Up @@ -58,7 +58,7 @@ write_to = "quantities/_version.py"

[tool.ruff]
line-length = 120
target-version = "py310"
target-version = "py311"

[tool.ruff.lint]
# pycodestyle errors and warnings, pyflakes, isort.
Expand Down
3 changes: 2 additions & 1 deletion quantities/quantity.pyi
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@@ -1,5 +1,6 @@
from typing import Any, Optional

import numpy as np
import numpy.typing as npt

from quantities.dimensionality import Dimensionality
Expand All @@ -21,7 +22,7 @@ def scale_other_units(f: Any) -> None:
...


class Quantity(npt.NDArray):
class Quantity(np.ndarray[Any, np.dtype[Any]]):

def __new__(cls, data: QuantityData, units: DimensionalityDescriptor = ...,
dtype: Optional[object] = ..., copy: bool = ...) -> Quantity:
Expand Down
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