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pythoncron
JeffThompson
JeffThompson

Reputation: 1600

KeyError 'PATH' when running script from cron

I have a Python script that works when run from the normal Terminal (and from any location) but fails when running from cron, throwing a KeyError: 'PATH' error.

A comment on this post suggests that this is because cron runs with a different environment. When I switch using env -i /bin/bash --noprofile --norc as suggested, the KeyError is raised and appears to be from os.environ["PATH"] not being set, which I can confirm.

How do I set that, and to what? Can I make this permanent for cron?

EDIT: My question is very similar to some others, but different in that it threw a specific error from Python – I think keeping this question will help if anyone gets the same KeyError?

Upvotes: 1

Views: 1519

Answers (1)

Laurent LAPORTE
Laurent LAPORTE

Reputation: 22962

You need to define your environment variables, like PATH in your /etc/crontab file.

Eg.:

SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

# m h dom mon dow user   command
01 01 * * 1-5 root python /path/to/file.py

See: https://stackoverflow.com/a/2409369/1513933

Upvotes: 2

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