Pythonized ComputerCraft API

First, you need to start a server:

cd your_folder_with_programs
python -m computercraft.server

Current directory is the place for your amazing programs. Server tracks files inside this directory and reloads if necessary. You don't (always) have to restart server if you change your programs.

Create simple program named hello.py:

async def program(api):
    await api.print('Hello world!')

There must be a separate file for each program with program coroutine defined.

In minecraft, open up any computer and type:

wget http://127.0.0.1:8080/ py
py hello

py is short Lua program that interacts with the server. Argument is the name of program without .py. In everything else it works exactly like native program on Lua. api object contains almost everything as is in ComputerCraft documentation:

async def program(api):
    await api.disk.eject('right')
    await api.print(await api.os.getComputerLabel())
    # ...

Using python coroutines allows launching commands in parallel, effectively replacing parallel API:

async def program(api):
    # Since os.sleep is mostly waiting for events, it doesn't block execution of parallel threads
    # and this snippet takes approximately 2 seconds to complete.
    await asyncio.gather(api.os.sleep(2), api.os.sleep(2))