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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def SpawnProcess(popen_args, passwd=None):
 """Spawns a process."""

  if passwd is not None:
    # We send the password via pipe to avoid creating a process with the
    # password as an argument that will get logged on some systems.
    p = subprocess.Popen(popen_args, stdin=subprocess.PIPE)
    p.communicate(input=passwd)
  else:
    p = subprocess.Popen(popen_args)
    p.wait()
  if p.returncode != 0:
    raise ErrorDuringRepacking(" ".join(popen_args))