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, Dec 16 '19 at 18:21
Does this answer your question? ['which' equivalent function in Python](https://stackoverflow.com/questions/5226958/which-equivalent-function-in-python) — manveti, Dec 16 '19 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, Dec 16 '19 at 18:58
Possible duplicate of ['which' equivalent function in Python](https://stackoverflow.com/q/5226958/608639), [Test if executable exists in Python?](https://stackoverflow.com/q/377017/608639), [How to check if a program exists from a Bash script?](https://stackoverflow.com/q/592620/608639), etc. — jww, Dec 16 '19 at 22:14

score 1 · Answer 1 · edited Jan 04 '23 at 17:01

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")

Check if a program is installed with Python

1 Answers1