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Rasp Pi: "lp: not allowed to print" when using a python script - Printable Version

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Rasp Pi: "lp: not allowed to print" when using a python script - montypython76 - Jun-12-2017

Hi there,

I have an issue printing a textfile with a python script. The script is simple:

import os

os.system('lp "testdatei.txt"')
But instead of a clean print I get the error above. Tried also with "sudo".

Using 'lp "testdatei.txt"' directly in a terminal windows works perfectly. Even using the code above within the python interactive mode works, but not as a script. User "pi" is in the lp group. I have no idea were the right problem exists. I also tried with subprocess, but this also led to the error above


RE: Rasp Pi: "lp: not allowed to print" when using a python script - DeaD_EyE - Jun-13-2017

Cross-Post with solution: https://www.raspberrypi.org/forums/viewtopic.php?t=185806&p=1174200