Detect if python script is run from console or by crontab [duplicate]
Since sys.stdin will be a TTY in debug mode, you can use the os.isatty() function:
import sys, osif os.isatty(sys.stdin.fileno()): # Debug mode. passelse: # Cron mode. pass
You could add an environment variable to the crontab line and check, inside your python application, if the environment variable is set.
crontab's configuration file:
CRONTAB=true# run five minutes after midnight, every day5 0 * * * /path/to/your/pythonscriptPython code:
import osif os.getenv('CRONTAB') == 'true': # do your crontab thingselse: # do your debug things
Use a command line option that only cron will use.
Or a symlink to give the script a different name when called by cron. You can then use sys.argv[0]to distinguish between the two ways to call the script.