#!/usr/lib/python3
import sys
import subprocess
import os
nbarg = len(sys.argv)
if nbarg != 2:
       print ("Nombre d'argument invalide")
       exit (1) 
filename = sys.argv[1]
try:
    fh = open(filename, "r")
except:
    print ("Fichier ", filename," inconnu")
    exit (2)
else:
    line = fh.readline ()
    while line:
        nouvline = line.rstrip()
        login,nomlong = nouvline.split(':')
        cmd = "sudo useradd -m -d /home/"+login+" -c \'"+ no$
        res = os.system ("getent passwd "+login)
        if res != 0:
            passw = ["pwgen", "4","1"]  
            #passw = "pwgen 4 1"
            os.system (cmd)
            #mdp = str(os.system (passw))
            #print (mdp)
            mdp = subprocess.run(passw,capture_output=True)
            mdp2 = mdp.stdout.decode("utf-8")
            mdp3 = mdp2.rstrip()
            print (mdp3)
            ch3 = "echo "+login+":"+mdp3+"|sudo chpasswd"
            print (ch3)
            os.system (ch3)
            os.system ("sudo echo "+login+":"+mdp3+" >> "+fi$
        else:
            print ("Utilisateur "+login+" déjà éxistant")
            os.system ("sudo userdel -r "+login)
        line = fh.readline()

    fh.close()