a lightweight alternative.
- written in python (2.7+, 3.4+)
- optional dependency on the Python Redis client
supports:
- multi-process, multi-thread or greenlet task execution models
- schedule tasks to execute at a given time, or after a given delay
- schedule recurring tasks, like a crontab
- retry tasks that fail automatically
- task result storage
- task locking
- task pipelines and chains
from huey import RedisHuey, crontab
huey = RedisHuey('my-app', host='redis.myapp.com')
@huey.task()
def add_numbers(a, b):
return a + b
@huey.periodic_task(crontab(minute='0', hour='3'))
def nightly_backup():
sync_all_data()To run the consumer with 4 worker processes:
$ huey_consumer.py my_app.huey -k process -w 4To enqueue a task to add two numbers and print the result:
res = add_numbers(1, 2) # Enqueues task.
print(res.get()) # Prints "3".To schedule two numbers to be added in 10 seconds:
res = add_numbers.schedule(args=(1, 2), delay=10)
# Attempt to get result without blocking.
print(res.get(False)) # returns None.
# Block until result is ready and print.
print(res.get()) # after 10 seconds, prints "3".To use Huey with Redis (recommended):
from huey import RedisHuey
huey = RedisHuey()To use Huey with SQLite (docs):
from huey.contrib.sqlitedb import SqliteHuey
huey = SqliteHuey('my-app-queue.db')To run Huey within the parent process using background greenlets (docs):
from huey.contrib.minimal import MiniHuey
huey = MiniHuey()
huey.start() # Spawns scheduler background thread and returns immediately.To run Huey with a simple Python broker (should not be used in production), install [simpledb](https://github.com/coleifer/simpledb) and run:
from huey.contrib.simple_storage import SimpleHuey
huey = SimpleHuey()
# Be sure to run the Python broker process, e.g.:
# $ python simpledb.py # Starts Python broker.See source code and issue tracker on Github.
Huey is named in honor of my cat:
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