thanks for helping me setting my cron jobs, crontab has really been a gold mine for me.
Unfortunately I have a problem, and have no idea what so ever what it might be... basically a job does not start while the neighbour jobs do. I'll explain

This is my crontabs job list:

*/10 * * * *  python /webapps/foo/manage.py fetch_articles
*/10 * * * *  python /webapps/bar/manage.py fetch_books

I wrote them as they are in a file and stored them using crontab /path/to/file .
Checked with crontab -l and the jobs are there.

The strange thing is that 1 of these executes every 10 minutes normally... but the other one does not. I tried typing in the command manually, and it works fine without a problem.

Does anyone have suggestions?
Help would be much appreciated, thanks guys.

Update:
I've been in the system log files and I found this:

Mar  5 02:50:01 localhost CRON[21652]: (root) CMD (python /webapps/foo/manage.py fetch_books)

Does this mean crontab is calling the job fine?

Thanks for your replies guys!

FIXED IT! thank you very much everyone!!
The problem was that the script silently failed, I believe it's due to the PYTHON_PATH changing due to where the script is called from... I'm entirely sure.
I think ~unutbu's answer is probably correct if it's the second job that isn't running.
However another thing to check is whether /webapps/bar/manage.py requires exclusive access to any resources, eg network sockets/tempfiles etc. Since you are starting 2 processes at the same time, you may be triggering a race condition.
Crontab job does not start... ideas?