Issue
I have the following script:
#!/usr/bin/env python
import sys
import pyttsx
def main():
print 'running speech-text.py...'
engine = pyttsx.init()
str = "Hi..."
if len(sys.argv) > 1:
str = sys.argv[1]
engine.say(str)
engine.runAndWait()
if __name__ == '__main__':
main()
and I have placed it in /usr/bin/speech-test.py
I have also given it executable permissions and ownership to root:
sudo chown root:root /usr/bin/speech-test.py
sudo chmod 4755 /usr/bin/speech-test.py
However, this script will only run correctly if I run as sudo speec-test.py. If I try to run it as just speech-test.py it complains about not finding a bunch of ALSA lib files.
Am I missing something to have my script run with root privileges?
Solution
So you want the script to run as root, even without sudo? For that you would need to set the setuid bit on the script with sudo chmod u+s program. However, most Unix distributions allow this only for binaries, and not for scripts, for security reasons. In general it's really not a good idea to do that.
If you want to run this script as root, you will have to run as sudo. Or, you have to create a binary that runs your script, so that you can set the setuid bit on this binary wrapper. This related question explains more.
It's also a good idea to check the effective uid, and if it's not root then stop running. For that, add this near the top (thanks @efirvida for the tip!)
if not os.geteuid() == 0:
sys.exit("\nOnly root can run this script\n")
ORIGINAL ANSWER
Maybe your user and root use a different version of python, with different python path, and different set of libraries.
Try this:
command -v python
sudo command -v python
If the two commands don't give the same result then you either need to change the setup of the users to use the same version of python (the one that has the ALSA libs), or hardcode the python version the first line of the script.
Also try adding a print sys.path line in the script, and run with your user and with sudo and compare. Probably you'll get different results. You may need to tweak the PYTHONPATH variable of your user.
It shouldn't be necessary to make the owner of the script root, and to run it with sudo. You just need to configure python and PYTHONPATH correctly.
Answered By - janos Answer Checked By - Marilyn (WPSolving Volunteer)