killtop.py

#!/usr/bin/env python3

from subprocess import call, check_output, CalledProcessError

top_ps = check_output('ps haxo pid,command k -pcpu | head -n 1', shell=True)
top_ps = str(top_ps, encoding='UTF-8')
top_pid, top_cmd = top_ps.strip().split(' ', 1)

try:
	question = check_output([
		'zenity',
		'--question',
		'--title', 'Killtop',
		'--text', 'Tem certeza que deseja matar o processo `%s`?' % top_cmd
	])

	call(['kill', top_pid])
except CalledProcessError:
	pass