[migration] Ignore IOError from readline.write_history_file (closes #2106621) We already ignore them when reading the histfile, no reason writing it back should be any different.

from os.path import join
from cubicweb.toolsutils import create_dir

option_renamed('pyro-application-id', 'pyro-instance-id')

create_dir(join(config.appdatahome, 'backup'))