* net/tramp-sh.el (tramp-get-remote-id): Do not raise an error.
(tramp-get-remote-uid-with-id, tramp-get-remote-gid-with-id)
(tramp-get-remote-python): New defuns.
(tramp-get-remote-uid-with-perl)
(tramp-get-remote-gid-with-perl): New defuns. Perl code
contributed by yary <not.com@gmail.com> (tiny change).
(tramp-get-remote-uid-with-python)
(tramp-get-remote-gid-with-python): New defuns. Python code
contributed by Andrey Tykhonov <atykhonov@gmail.com> (tiny change).
(tramp-get-remote-uid, tramp-get-remote-gid): Use new defuns.