On Jan 28, 2008 12:35 AM, Greg Ewing <[EMAIL PROTECTED]> wrote: > Isaac Morland wrote: > > > What about an option (maybe even a default) to send the prompt to stdin? > > > > The Postgres command line interface psql appears to do this: > > > > $ psql 2>&1 >/dev/null > > Password: > > $ > > No, it's probably using the C stdlib routine getpass(). From the man > page: > > The getpass() function displays a prompt to, and reads in a password > from, /dev/tty. If this file is not accessible, getpass() displays the > prompt on the standard error output and reads from the standard input. > > So it appears that the official Unix Way prefers using stderr > over stdout for prompting, if using the std files for it at all.
That's a dangerous generalization from just one example. I'd prefer it if you could unearth some POSIX or Linux base document saying this. > Writing to stdin would be wrong, since it's usually read-only, even > when connected to a terminal. Nowadays, it often is writable I've found, but we still shouldn't assume that. -- --Guido van Rossum (home page: http://www.python.org/~guido/) _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
