Hello,
i needed to create a custom cron job that change de default code of my product but when i checked the "Scheduled Actions" list i found out that none of my actions is working.
on logs we found : 

odoo.addons.base.ir.ir_cron: Starting job `Action name`.

odoo.addons.base.ir.ir_cron: Job `Action name` done.

to be sure that the action don't run i made it as simple as this :
@api.model

def affect_default_code(sefl):

print ("hello world")

still nothing is being printed .
please can someone help me fix this