How do I check if an rpm package is installed using Python? [duplicate]

问题

This question already has answers here:

Pythonic way to check if a package is installed or not (3 answers)

Closed 18 days ago.

I am writing a Python 2.7 app that relies on several rpm packages to be installed. There is a planned port to Python 3 in the near future. Is there a simple function call to check if an rpm is installed that works in both versions of Python?

e.g.

rpm = "binutils"
if package_installed(rpm):
    print("{} is installed".format(rpm))

回答1:

import os

rpm = 'binutils'

f = os.popen('rpm -qa')
arq = f.readlines()
if rpm in arq:
    print("{} is installed".format(rpm))

来源：https://stackoverflow.com/questions/59375889/how-do-i-check-if-an-rpm-package-is-installed-using-python