Check if a Debian package is installed from Python

Question

Is there an elegant and more Python-like way to check if a package is installed on Debian?

In a bash script, I\'d do:

dpkg -s packagename | grep Stat         


        

Answer 1

This is a pythonic way:

import apt
cache = apt.Cache()
if cache['package-name'].is_installed:
    print "YES it's installed"
else:
    print "NO it's NOT installed"