Cursed Python - inspired by `jtolio/gls`

gls.py

import inspect
from collections.abc import Iterator
from asyncio import run, sleep, create_task
from types import FrameType
from typing import Optional


async def _setup_(f):
    return await f

async def _0_(f):
    return await f

async def _1_(f):
    return await f


def frames(base: Optional[FrameType]) -> Iterator[FrameType]:
    while base is not None:
        yield base
        base = base.f_back


def get_id() -> int:
    total = 0
    for frame in frames(inspect.currentframe()):
        name = frame.f_code.co_name
        if name == "_setup_":
            return total
        elif name == "_0_":
            total = total * 2
        elif name == "_1_":
            total = total * 2 + 1
    return None


async def func3(x):
    print("sleeping...", x)
    await sleep(0.5)
    print("done", x)

    print("id of", x, get_id())

async def func2(x):
    return await func3(x)

async def func1(x):
    return await func2(x)


async def main():
    task1 = create_task(
        _setup_(_0_(_1_(_0_(_0_(_1_(
            func1("foo")
        ))))))
    )
    task2 = create_task(
        _setup_(_1_(_0_(_0_(_0_(_1_(_1_(
            func1("bar")
        )))))))
    )
    await task1
    await task2


run(main())