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CronTab

Mac and Linux users can use CronTab to schedule Python scripts! CronTab is preinstalled on MacOS.

Give CronTab access to File Disk

> Open System Preferences
> Click Security and Privacy
> Click File Disk Access
> Click the + button
> Press Command + Shift + G
> Type /usr/sbin/cron
> Click Open

Schedule the script to run every hour

  1. Launch Terminal.
  2. Type crontab -e to launch CronTab editor.
  3. Press i to edit
  4. Type 0 * * * * cd ~/Documents/portfolio/craigslist_chairs && /Users/taekunkim/opt/anaconda3/bin/python3 script.py
  • 0 * * * * sets the schedule to every hour of every day
  • cd ~/Documents/portfolio/craigslist_chairs brings CronTab to the directory where my script is saved
  • /Users/taekunkim/opt/anaconda3/bin/python3 script.py is the same as typing in python3 script.py. However, CronTab may not recognize python3, so we must type in the directory where python3 is saved. You can find the directory by typing which python3 into Terminal.
  1. Press esc
  2. Enter :wq

That's it!