Python how to create pycache folder without using super user's authority?

Question

I need to listen linux's port to run my service. So, I always run the python program to start with sudo previlage, that made the files created by program like pycahee and .pyc files also get super user's authority,the files and directories can only be removed in sudo mode. That's very inconvenience. So, is there a way to specify python to create normal folder and files?

score 0 · Answer 1 · edited May 23 '17 at 11:56

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Running a script as root just so you can listen on privileged ports is not good practise (unless the script really does require root).

If your script doesn't require root, then I would recommend using setuid/setgid to drop privileges after you have set up the privileged port socket;

This has already been answered in detail here;

Dropping Root Permissions In Python

Edit: OP mentioned that the pyc file created still has root permissions. You could use the suid bit (chmod u+s script.py) then setuid(0) to gain root permissions during runtime, ensuring the file ownership is not root. Setting the suid bit for only the file owner also means other users cannot abuse the suid bit.

edited May 23 '17 at 11:56

Community

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answered Jan 24 '14 at 14:53

SleepyCal

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drop privilege may work but what about the very first py file?the pyc is still created under the root permission right? – user2003548 Jan 24 '14 at 15:25
Did this fix your problem in the end? Don't forget to upvote if it worked for you :) – SleepyCal Jan 31 '14 at 13:58

score 0 · Answer 2 · answered Jun 08 '23 at 23:16

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A potential strategy is to run compileall as your normal user first so that the pyc files already exist and root doesn't have to create them.

python -m compileall

Documentation is here.

answered Jun 08 '23 at 23:16

Eric Smith

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Python how to create pycache folder without using super user's authority?

2 Answers2