Koskript

Koskript is a simple, embeddable, and lightweight scripting language for Python applications. It features dynamic typing, lexical scoping, closures, classes and native Python interop — letting you expose any Python function or object directly to your scripts.

See the documentation here

from koskript import KoskriptRuntime

runtime = KoskriptRuntime()
runtime.execute("""
const names = ["Ana", "Luis"]
array.each(names, (name) { print("hello " + name) })
""")

NOTE: Koskript is in early development; expect the language and API to change between releases.

Features

• Dynamic typing.
• Block-level lexical scoping with local declarations.
• Namespaces (namespace Name { ... }) to group declarations.
• Closures that capture their defining scope, including this inside methods.
• Constants with const.
• Classes with inheritance, visibility, static methods and constructors.
• Standard library: core builtins plus map, array, string, bytes, math and json.
• Module imports with per-module resolution (import "utils").
• Configurable import search paths (runtime.add_import_path).
• Native Python interop for functions, objects and classes.
• if, elseif, else.
• while, for, foreach loops with break / continue.
• Error handling with error declarations, throw, try / catch / finally.
• Member access and index access.
• First-class functions and lambda expressions.
• Wrappers with implicit return and Python-style decorators (@wrapper).
• Arithmetic, comparison and logical operators.
• Embeddable in any Python application.

Installation

pip install -U koskript

Or clone the repository and import it directly:

git clone https://github.com/alesis-buzz/koskript.git

Koskript requires Python 3.10+ and Lark. There is an experimental dependency-free parser behind KoskriptRuntime(native_parser_experiment=True).

Documentation

License

Koskript is licensed under the Mozilla Public License 2.0 (MPL-2.0). See LICENSE for the full text.

You are free to use, modify, and redistribute Koskript. However, you may not redistribute this project under a different name or claim authorship of the Koskript language.

Koskript is a trademark of Alesis.

Built with ❤️ by Alesis