procrastinate 0.1.0

Postgres-based distributed task processing library

procrastinate

Kind of like Celery but based on elephants (Postgres) instead of rabbits (RabbitMQ)

Currently very alpha stage.

Database creation

Launch a postgres DB the way you want, e.g. using docker:

$ docker-compose up -d
$ export PGDATABASE=procrastinate PGHOST=localhost PGUSER=postgres
$ createdb && psql -v ON_ERROR_STOP=ON -f init.sql

Installation for development

procrastinate officially is compatible with Python 3.6 and above, using Postgres 10.

$ pip install -r requirements.txt

You may need to install some required packages for psycopg:

$ apt install libpq-dev python-dev

Testing

With a running database, in the dev virtualenv:

$ pytest

Code cleaning

In the dev virtualenv, before commiting:

$ black .
$ pylint .
$ isort

Demo usage

With a running database, in the dev virtualenv:

Launch a worker

$ python -m procrastinate_demo worker sums
$ python -m procrastinate_demo worker products

Schedule some tasks

$ python -m procrastinate_demo client