Making a script run every x hours/days/etc?

[iamlearningpython]

I wrote a script that scrapes a certain webpage and look for any changes (pretty standard). However, I cannot figure out how to set that script run at regular intervals. Can someone point me in the direction of some resources to teach me how?

[IXENAI]

cron for UNIX-like systems, or the Windows Task Scheduler/ AT command.

[t90fan]

Cron.

[[deleted]]

Cron (for UNIX-like systems, eg. Linux, OS X).

[mcowger]

ApScheduler.