import os
import sys
import subprocess

def rpm_detect(rpm_name, bin_name):
	stdout = subprocess.run(bin_name, shell=True, stderr=subprocess.PIPE).stderr.decode()
	if stdout.find('command not found') >= 0:
		print('Can\'t find %s, begin to install it from repo...'%rpm_name)
		yum_results = subprocess.run('yum install %s -y'%rpm_name, shell=True, stderr=subprocess.PIPE).stderr.decode()
		if yum_results.find('Error') >= 0 or yum_results.find('error') >= 0:
			print('Failed to install %s from repo.'%rpm_name)
			exit(1)
	return