python程序停止运行语句,当脚本作为cronjob运行时，python脚本在import语句处停止...

痛定思痛。 2023-01-24 04:28 9阅读 0赞

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I'm executing a python script every 30 minutes with cron, but it stops at the import statement and I don't understand why because I don't get any feedback.

In my crontab I have \*/30 \* \* \* \* sh exec\_script.sh

The file exec\_script.sh is

cd /home/ziofil/python\_scripts

python script\_30\_mins.py

In the python script I have

import logging

logging.basicConfig(filename="explicit\_log.txt",level=logging.DEBUG)

logger = logging.getLogger(\_\_name\_\_)

logger.debug("script is executed")

\# in the python\_scripts folder there is a subfolder utilities/ that

\# contains utility\_1.py, were I define the class Utility

from utilities.utility\_1 import Utility

logger.debug("Utility loaded")

utility = Utility()

logger.debug("object creation")

utility.do\_your\_thing()

logger.debug("done its thing")

If I execute python script\_30\_minutes.py from the terminal, everything works just fine, but with cron the execution stops at the import statement (I read "script is executed", but noting else).

What is going wrong?

UPDATE: I put the import statement in a try/except block and it logged the exception: "No module named utilities.utility\_1". I also tried to set the PYTHONPATH variable in the shell script to /home/ziofil/python\_scripts, but it still doesn't work.

解决方案

I found out what the problem was. @UweMannl was right all along. After @mhawke pointed out that cron's environment is different than the one of my terminal, I thought that perhaps also the python binary could be different and indeed it was: I want /home/ziofil/anaconda3/bin/python and cron was using /usr/bin/python.

I modified the last line of the script to /home/ziofil/anaconda3/bin/python script\_30\_mins.py and everything works!

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