[Solved] Client "dialog-like" problem

Hi,
I signed up for the Let's Encrypt Closed Beta.

command: ./letsencrypt-auto --agree-dev-preview --server https://acme-v01.api.letsencrypt.org/directory auth

error log:

Traceback (most recent call last):
File "/home/black/.local/share/letsencrypt/bin/letsencrypt", line 11, in
sys.exit(main())
File "/home/black/.local/share/letsencrypt/lib/python2.7/site-packages/letsencrypt/cli.py", line 1058, in main
setup_logging(args, _cli_log_handler, logfile='letsencrypt.log')
File "/home/black/.local/share/letsencrypt/lib/python2.7/site-packages/letsencrypt/cli.py", line 979, in setup_logging
cli_handler = cli_handler_factory(args, level, fmt)
File "/home/black/.local/share/letsencrypt/lib/python2.7/site-packages/letsencrypt/cli.py", line 966, in _cli_log_handler
handler = log.DialogHandler()
File "/home/black/.local/share/letsencrypt/lib/python2.7/site-packages/letsencrypt/log.py", line 29, in init
self.d = dialog.Dialog() if d is None else d
File "/home/black/.local/share/letsencrypt/lib/python2.7/site-packages/dialog.py", line 1013, in init
self._dialog_prg = _path_to_executable(dialog)
File "/home/black/.local/share/letsencrypt/lib/python2.7/site-packages/dialog.py", line 477, in _path_to_executable
"can't find the executable for the dialog-like "
ExecutableNotFound

version: letsencrypt 0.0.0.dev20151024

OS: Gentoo Linux

What python package is missing?

Emerge dev-util/dialog

Hi @black. Yes, the problem is dialog. Did installing dev-util/dialog fix it?