I've scheduled a Cron job like below but it is not executing. Do I need to put command before or is it ok to write only path.

With Command in the cronjob: 0 4 * * 1 python /app/www/html/RegionSubregion/ceeinca.py
Without command in the cronjob: 0 4 * * 1 /app/www/html/RegionSubregion/ceeinca.py

Which one is correct here?
I need to run this particular python script on 1st day (Monday) of everyweek at 4AM. Please guide. Thank you.
Option 1 works if you give execute permission to the file.
Execute Permission: chmod +x /app/www/html/RegionSubregion/ceeinca.py
How to schedule Cron Job in Linux