[Zope] Can't get my crontab -e working

[Laura McCord]

This is what I did:

crontab -e

*/2 * * * * wget http://path/to/my/pythonscript


This does not work. I am probably missing something like a username or
password in this line but what username do I need. Is it the main user
in the acl_users, manager, of my zope or do I use the username=zope or I
placed a local role to that script with manager privileges do I use that
username? 

Thanks,
 Laura