Skip to main content

Cron scheduling for python functions.

Project description

# crython [![Build Status](](
crython is a lightweight task (function) scheduler using [cron]( expressions written in python.

### Status
This module is currently under development.

### Installation
To install crython, simply:
$ pip install crython

### Usage
Crython supports seven fields (seconds, minutes, hours, day of month, month, weekday, year).

Call a function once a minute:
import crython

#Fire once a minute.
def foo():
print "... while heavy sack beatings are up a shocking nine hundred percent?"

Call a function every ten seconds:
#Fire every 10 seconds.
def foo():
print "I'm a big four-eyed lame-o and I wear the same stupid sweater every day."

Call a function with a single cron expression:
#Fire every 10 seconds.
def foo():
print "Hail to the thee Kamp Krusty..."

Call functions with a full cron expression:
#Fire once a week.
@crython.job(expr='0 0 0 * * 0 *')
def foo():
print "Back in line, maggot!"

Call functions with positional and/or keyword arguments:
#Fire every second.
@crython.job(second=0, 10, 20, name='Homer Simpson')
def sum(x, y, name):
print "Hello {0}. The sum is {1}".format(name, x+y)

Call functions with [predefined keywords](
#Fire once a day.
def foo():
print "That's where I saw the leprechaun. He tells me to burn things!"

Start the global job scheduler:
if __name__ == '__main__':

### TODO
- Keyword support (yearly, weekly, daily, etc)
- Support "L", "W" and "#" specials.
- Determine time delta from now -> next time expression is valid.

### Contributing
If you would like to contribute, simply fork the repository, push your changes and send a pull request.

### License
Crython is available under the [MIT license](

### See Other
There are similar python cron libraries out there.

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution (11.1 kB view hashes)

Uploaded source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page