Python script error with cron

Question

I am trying to run a python script every hour with cron. This is everything I have in my crontab.

0 * * * * python /Users/jamesrusso/Documents/TorMeasure/TorMeasurementProject/getConsensus.py

But I get an error when it tries to run saying ImportError: No module named stem.descriptor. I have included #!/usr/local/bin/python in my python script. Does anyone know a way to fix this or need more info let me know

What do you get when you type python --version? Is it the same as /usr/local/bin/python? — Selcuk
– Selcuk, Commented Jan 31, 2016 at 6:17
it doesn't matter you have #!/usr/local/bin/python in script because you run python script. Use full path to Python in crontab. — furas
– furas, Commented Jan 31, 2016 at 6:17
have you tested your script before inserting to cronjob, is ti was working fine? — Hackaholic
– Hackaholic, Commented Jan 31, 2016 at 6:18
python version gives me "Python 2.7.10" which is the same as when i use /usr/local/bin/python. Yes it works fine in terminal. What do you mean #!/usr/bin/env python is better? Should I put that in the python script — James Russo
– James Russo, Commented Jan 31, 2016 at 6:45

Selcuk · Accepted Answer · 2016-01-31 06:18:45Z

1

Most likely you have multiple Python versions installed in your machine. Change your cron line to include the full path:

0 * * * * /usr/local/bin/python /Users/jamesrusso/Documents/TorMeasure/TorMeasurementProject/getConsensus.py

answered Jan 31, 2016 at 6:18

Selcuk

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1 Comment

James Russo Over a year ago

I feel like this might be the problem, will keep you posted when the script runs in 14 mins

Hackaholic · Accepted Answer · 2016-01-31 06:20:47Z

1

There are some steps you can check:

Step 1:

$which python 
will give you location of python installed

step 2:

try to include 
#!/usr/bin/env python

step 3:

you can give the full path of python in your cronjob
0 * * * * /usr/local/bin/python /Users/jamesrusso/Documents/TorMeasure/TorMeasurementProject/getConsensus.py

step 4:

have you tested your script before inserting to cronjob, is it was working fine?

answered Jan 31, 2016 at 6:20

Hackaholic

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