Check if a program is installed with Python

Question

My code requires that UFW (Uncomplicated firewall) is installed. The program will only be run on a Linux based OS. How would I go about having Python return a value if it finds UFW installed?

Edit: Instead of catching the output, I want to see if the folder (in the default installation path) exists.

How would you check if UFW is installed from the command line? Can you arrange to run the same commands using Python? — larsks
– larsks, Commented Dec 16, 2019 at 18:21
Does this answer your question? 'which' equivalent function in Python — manveti
– manveti, Commented Dec 16, 2019 at 18:25
I'm aware I could just run the command and catch the output, but I want to see if the folder (in the default installation path) exists or not. — Clemens Dotson
– Clemens Dotson, Commented Dec 16, 2019 at 18:58
Possible duplicate of 'which' equivalent function in Python, Test if executable exists in Python?, How to check if a program exists from a Bash script?, etc. — jww
– jww, Commented Dec 16, 2019 at 22:14

Azeem Idrisi · Accepted Answer · 2023-01-04 17:01:31Z

1

Please note this is just an edited copy of links

Hope This helps

import subprocess
rc = subprocess.call(['which', 'ufw'])
if rc == 0:
    print('ufw installed!')
else:
    print('ufw missing in path!')

# To check whether path exists
import os

if os.path.exists("/usr/sbin/ufw") :
  print("path exists")
else:
  print("path doesn't exist")

edited Jan 4, 2023 at 17:01

Azeem Idrisi

2752 silver badges7 bronze badges

answered Dec 16, 2019 at 19:13

Akhil Suresh

1519 bronze badges

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