WoLpH

import osclass DaemonTools(object):	commandline = r'c:\program files\daemon tools\daemon.exe'		def __init__(self, iso):		self.iso = iso	def set_iso(self, iso):		if os.path.isfile(iso):			self._iso = iso		else:			self._iso = None			raise ValueError, '"%s" is not a file or does not exist' % iso	def get_iso(self):		return self._iso	iso = property(get_iso, set_iso)	def run(self):		os.execv(self.commandline, (commandline.split('\\')[-1], self.iso))