code: def chmod(path, mode=None, user=None, group=None, other=None, recursive=False):
      
      successful = True
      mode = _ops_mode(mode)
      if user is not None:
          mode.user = user
      if group is not None:
          mode.group = group
      if other is not None:
          mode.other = other
      if recursive:
          for p in find(path, no_peek=True):
              successful = _chmod(p, mode) and successful
      else:
          successful = _chmod(path, mode)
      return successful
docs: Changes file mode permissions.
  
        >>> if chmod('/tmp/one', 0755):
        ...     print('OK')
        OK
  
      NOTE: The precending ``0`` is required when using a numerical mode.