kuu 0.2.0

lightweight async distributed task queue

kuu

---

a native distributed task queue for python

uv add kuu
# extras: msgspec, nats, prometheus, redis, dashboard

nothing serious in this project, just got tired of taskiq's undefined behaviour and logging.getLogger("root")

quick start

# myapp/app.py
from kuu import Kuu
from kuu.brokers.redis import RedisBroker
from kuu.results.redis import RedisResults

app = Kuu(broker=RedisBroker(url=...), results=RedisResults(url=...))


# myapp/tasks.py
from .app import app


class ChargeResult(TypedDict):
    ok: bool
    charged: int


@app.task
async def charge(user_id: int, amount_cents: int) -> ChargeResult:
    return {"ok": True, "charged": amount_cents}


@app.schedule.cron(expr="* * */4 * * *")
async def refresh_balance() -> None: ...


# myapp/main.py
from .tasks import charge


async def run() -> None:
    # type checker will automatically infer here
    # that handle is type of TaskHandle[ChargeResult]
    # args/kwargs of the task also remain typed
    handle = await charge.q(user_id=1, amount_cents=500)

    # type checker will infer ChargeResult
    result = await handle.result(timeout=30)

# reads ./kuunfig.toml or [tool.kuu] in ./pyproject.toml
uv run kuu start

# pick a preset and override specific settings
uv run kuu start -p prod -o concurrency=128 -o dashboard.enable=true

config

put the block below into kuunfig.toml, or under [tool.kuu] in your pyproject.toml

[default] holds base values; each [presets.<name>] overrides only the fields you set. unset fields fall back to [default]. a flat config (no [default] wrapper) still works

[default]
app = "myapp.module:instance"            # dotted path to the Kuu instance
task_modules = ["myapp.tasks"]           # modules that register tasks

queues = []                              # consume from; empty = auto-discover from registry
processes = 1                            # worker subprocesses to spawn
concurrency = 64                         # max concurrent tasks per worker
prefetch = 16                            # batch size; defaults to max(1, concurrency // 4)
shutdown_timeout = 30.0                  # seconds to wait for in-flight tasks on stop

[metrics]
enable = false
host = "0.0.0.0"
port = 9191

[dashboard]
enable = false
host = "0.0.0.0"
port = 8181
path = "/dashboard"

[scheduler]
enable = false                           # run scheduler loop in-process; jobs declared via app.schedule

[watch]
enable = false                           # reload workers on filesystem changes
root = "."                               # path to watch
respect_gitignore = true                 # skip files matched by .gitignore
exclude = [".git/**"]                    # extra globs to exclude
reload_delay = 0.25
reload_debounce = 0.5

[presets.prod]
processes = 8
concurrency = 256

[presets.dev]
processes = 1
concurrency = 16

any setting can be overridden from the CLI with -o dotted.path=value values are parsed as JSON when possible (true, 42, ["a","b"]), otherwise kept as strings

contribution

well if you insist... (issues / PRs welcome)

#clankersgoaway