Problems executing commands with (') character in python -

i'm doing program copies files music playlist. execute command this:

command =   'cp "%s" "%s"' % (songpath,plpath) os.system(command) 

the problem when execute if song's path has ' character command can not executed. says:

cp: cannot stat `/home/myname/music/oasis/(what\'s story) morning glory/03 wonderwall.mp3': no such file or directory

i checked songpath , has no \ character before ' know how avoid program adding \ character?

thank in advance!

use subprocess.call instead:

ret_val = subprocess.call(['cp',songpath,plpath]) 

this avoids shell arguments should passed cp in exact form gave them.