Issue with re.findall

[volcano63]

I was able to achieve via below modifications. Thanks everyone for all the help and support

#!/usr/bin/python

import re
import subprocess


s = subprocess.check_output(["opatch", "lsinventory"])
output = s.decode("utf-8")


patches = [27923320, 27547329, 21463894, 12345, 99999]

patches_found = set(re.findall(r'\b(?:%s)\b' % '|'.join(map(str, patches)), output))
patches_missing = set(map(str, patches)) - patches_found

if patches_found:
    print('Patch', patches_found, "detected")

if patches_missing:
    print("Patch", patches_missing, "missing")
    

You convert patches elements to strings twice - would not it have been easier to just define them as strings?!