Scratch Extension Tools

A Scratch Extension Tools. It can help you made Scratch Extension.

📦 Installation

pip install ScratchExtensionTools

📜 Changelog

See CHANGELOG.md

QuickStart

from ScratchExtensionTools import ScratchExtensionBuilder

builder = ScratchExtensionBuilder()

def hello_func():
    print("Hello Scratch!")

builder.create_block(
    opcode="say_hello",
    block_type="command",
    text="say hello",
    py_func=hello_func,
    show_in=['sprite']  # Python side argument, exported as `filter` in Scratch JSON
)

js_code = builder.build_extension(
    ext_id="demo",
    ext_name="Demo Extension",
    ext_color="#ffcc00"
)

print(js_code)  # => Scratch JS Extension

⚠️ Note on filter / showin

In Scratch extension JSON, the property is filter. But since filter is a Python built-in, this library uses the keyword showin on the Python side. It will still output filter correctly in the generated Scratch extension JSON.