Run external command from Python
Give a try to shutil and subprocess.

To copy all the files:
http://docs.python.org/2/library/shutil.html#shutil.copyfile

import shutil
shutil.copy(src_file, destination_file)


To make the system calls:
http://docs.python.org/2/library/subprocess.html#subprocess.check_call

import subprocess
subprocess.check_call('ls -al', shell=True)