#!/usr/bin/env python3

from sys import argv
from os.path import basename
import subprocess

fichiers = [basename(x) for x in argv[1:]]
ficout="_".join(fichiers).replace(' ','-').replace('.pdf','')+'.pdf'
cmd = ['pdftk'] + argv[1:] + ['cat', 'output', ficout]

process = subprocess.Popen(cmd,
                     stdout=subprocess.PIPE, 
                     stderr=subprocess.PIPE)
stdout, stderr = process.communicate()
#print(stdout)
#print(stderr)