pycronserver - Cron server for python functions

Execute python functions using cron tab. Rather than entering them all in the crontab file, they are stored in an SQL table and executed by the pycronserver in a for loop.

Installation

Install via pip:

pip install git+https://github.com/pyscioffice/pycronserver.git

Python Interface

Use python interface

from pycronserver import get_local_pycronserver
psc = get_local_pycronserver(config_dir="~/.pycronserver")

In the configuration directory ~/.pycronserver the configuration is stored in the config.json file:

• connection_str - connection string to connect to the SQL database - by default "sqlite:///~/.pycronserver/cron.db
• username - username (optional) - by default True but for windows a specific username is required.
• user_id - user ID (optional) - the database can be shared with multiple users.

To store a new python function call in the pycronserver database use:

psc.store(crontab, python_funct_path, input_dict)

• crontab follows the cron notation of Minutes, Hours, Day of month, Month, Day of week - for example 0 0 * * 0
• python_funct_path the path to the python function to execute - for example crontab.get_cronvalue
• input_dict the dictionary which contains the keyword arguments for the function call.

Finally write the required entries to crontab so it can trigger the execution of the pycronserver:

psc.write_to_crontab()

Command Line Interface

During the execution crontab calls pycronserver using the specified date pattern in the cron notation:

pycronserver '0 0 * * 0'

So the same call can be used to debug the execution of the pycronserver.