schedule python script through crontab

Question

I am trying to add a python script to crontab with following lines:

0 * * * * /pathtoexecutable/file.py
0 0 1 * 1 /pathtoexecutable/file2.py

Files are executable python scripts.

file.py further initiates around 15 subprocesses, which store info in a MySQL database.

file2.py gets, obviously, executed though through crontab as well.

For some reason file.py isn't working via crontab, but if I run it through command line it works.

Have you activated logging in cron? What is in the log?

Emil Vikström
– Emil Vikström

2012-06-06 18:35:20 +00:00
Commented Jun 6, 2012 at 18:35 — Emil Vikström
– Emil Vikström, Commented Jun 6, 2012 at 18:35

Zashas · Accepted Answer · 2012-06-07 08:01:03Z

1

1) Catch the output & errors of yours scripts :.

0 * * * * /pathtoexecutable/file.py &>> /path/some/log.txt
0 0 1 * 1 /pathtoexecutable/file2.py &>> /path/some/log2.txt

2) Be sure that every python file begins with a shebang : #! /usr/bin/env python

3) Be sure too that every python file has a exec mode (chmod +x file.py)

edited Jun 7, 2012 at 8:01

answered Jun 6, 2012 at 18:37

Zashas

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2 Comments

7HUND3RX Over a year ago

got nothing in logs.. they are blank you were missing >> in between i guess.. tried through both 2>&1 >> /path/some/log and 2>&1 /path/some/log Got nothing in them the python files begin with a shebang.. I can execute them from commandline without explicitly specifying the interpreter They have 777 permissions

7HUND3RX Over a year ago

No problem, Zahsas. I got it working now, I don't get it though.. modified command to include interpreter as well.. The scripts contain shebang but still they dont execute directly from cron. They work by specifying interpreter in /usr/local/bin. Thanks for your time. Appreciated!

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