def lstat(self, path):
return SFTP_OP_UNSUPPORTED<EOL>
Return an L{SFTPAttributes} object for a path on the server, or an
error code.  If your server supports symbolic links (also known as
"aliases"), you should I{not} follow them -- instead, you should
return data on the symlink or alias itself.  (L{stat} is the
corresponding call that follows symlinks/aliases.)

@param path: the requested path (relative or absolute) to fetch
    file statistics for.
@type path: str
@return: an attributes object for the given file, or an SFTP error
    code (like L{SFTP_PERMISSION_DENIED}).
@rtype: L{SFTPAttributes} I{or error code}