Pre-release

This release is a pre-release and may not be stable for production use.

basedpython

a python type checker and a python-like language that transpiles to pure python

  • a python type checker with framework support — pydantic, sqlalchemy, pytest and django are modelled directly, so the magic they do at runtime checks like ordinary code
  • basedpython, a python-like language that builds into python wheels
  • compiles into high performance python extension modules
  • a language server, formatter and linter — high performance and feature rich tooling
enum class Shape:
    case Circle(radius: int)
    case Rect(width: int, height: int)

    def area(self) -> int:
        return match self:
            case Shape.Circle(r):
                3 * r * r
            case Shape.Rect(w, h):
                w * h

extension list[Element: Shape]:
    def first_circle(self) -> Shape.Circle?:
        for shape in self:
            if shape is Shape.Circle:
                return shape
        return None

def stats(shapes: list[Shape]) -> (count: int, total: int):
    return (len(shapes), sum(s.area() for s in shapes))

def main():
    let shapes = [Shape.Circle(1), Shape.Rect(2, 3)]
    let summary = stats(shapes)
    print(f"{summary.count} shapes, {summary.total} total")
    print(shapes.first_circle()?.radius ?? 0)

installation

uv add --dev basedpython
echo 'print("hello")' > main.by
by run main

documentation

kotlinisland.github.io/basedpython

acknowledgements

basedpython is built on top of astral-sh/ruff. none of this would exist without the work of the astral team and the wider ruff community

Project links

Data verified by PyPI on Sep 26, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

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  • Released:
Stable release available (0.0.0)

1 maintainer

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Avatar for KotlinIsland from gravatar.com KotlinIsland

Credits

Author: Astral Software Inc.

GitHub Statistics

Data verified by PyPI on Sep 26, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

MIT
View SPDX License List

Requires

Python >=3.7

Tags

automation flake8 pycodestyle pyflakes pylint clippy

Classifiers

Report project as malware

Metadata

Project links

Data verified by PyPI on Sep 26, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

PyPI data
Data sourced directly from PyPI's database.
  • Released:
Stable release available (0.0.0)

1 maintainer

PyPI data
Data sourced directly from PyPI's database.
Avatar for KotlinIsland from gravatar.com KotlinIsland

Credits

Author: Astral Software Inc.

GitHub Statistics

Data verified by PyPI on Sep 26, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

MIT
View SPDX License List

Requires

Python >=3.7

Tags

automation flake8 pycodestyle pyflakes pylint clippy

Classifiers

Report project as malware

Release files for basedpython 0.0.1b1

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Source distribution (sdist)

Source distribution for basedpython 0.0.1b1
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basedpython-0.0.1b1.tar.gz 14.3 MB Details

Built distributions (wheels)

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File
basedpython-0.0.1b1-py3-none-win_arm64.whl 32.3 MB Python 3 none Windows ARM64 Details
basedpython-0.0.1b1-py3-none-win_amd64.whl 35.3 MB Python 3 none Windows x86-64 Details
basedpython-0.0.1b1-py3-none-win32.whl 30.9 MB Python 3 none Windows x86-32 Details
basedpython-0.0.1b1-py3-none-musllinux_1_2_x86_64.whl 34.1 MB Python 3 none Linux musl 1.2+ x86-64 Details
basedpython-0.0.1b1-py3-none-musllinux_1_2_i686.whl 34.2 MB Python 3 none Linux musl 1.2+ x86-32 Details
basedpython-0.0.1b1-py3-none-musllinux_1_2_armv7l.whl 31.1 MB Python 3 none Linux musl 1.2+ ARMv7l Details
basedpython-0.0.1b1-py3-none-musllinux_1_2_aarch64.whl 31.6 MB Python 3 none Linux musl 1.2+ ARM64 Details
basedpython-0.0.1b1-py3-none-manylinux_2_31_riscv64.whl 33.9 MB Python 3 none Linux glibc 2.31+ RISC-V 64 Details
basedpython-0.0.1b1-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl 35.4 MB Python 3 none Linux glibc 2.17+ x86-64 Details
basedpython-0.0.1b1-py3-none-manylinux_2_17_s390x.manylinux2014_s390x.whl 33.3 MB Python 3 none Linux glibc 2.17+ IBM System/390x Details
basedpython-0.0.1b1-py3-none-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl 36.8 MB Python 3 none Linux glibc 2.17+ PowerPC 64-le Details
basedpython-0.0.1b1-py3-none-manylinux_2_17_i686.manylinux2014_i686.whl 36.7 MB Python 3 none Linux glibc 2.17+ x86-32 Details
basedpython-0.0.1b1-py3-none-manylinux_2_17_armv7l.manylinux2014_armv7l.whl 31.2 MB Python 3 none Linux glibc 2.17+ ARMv7l Details
basedpython-0.0.1b1-py3-none-macosx_11_0_arm64.whl 32.1 MB Python 3 none macOS 11.0+ ARM64 Details
basedpython-0.0.1b1-py3-none-macosx_10_12_x86_64.whl 31.9 MB Python 3 none macOS 10.12+ x86-64 Details
basedpython-0.0.1b1-py3-none-linux_armv6l.whl 31.6 MB Python 3 none linux armv6l Details

Total release size: 546.6 MB

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