Problem deleting an experiment

I can't delete experiments because there is a python error. For example, when I type "autosubmit delete a001", autosubmit asks me:

Do you want to delete a001 ? [y/n]

I answer "y", but then it gives me the following error:

[CRITICAL] Unhandled exception on Autosubmit: name 'y' is not defined Traceback (most recent call last): File "/shared/earth/python2.7/autosubmit/autosubmit.py", line 261, in parse_args return Autosubmit.delete(args.expid, args.force) File "/shared/earth/python2.7/autosubmit/autosubmit.py", line 453, in delete if force or Autosubmit._user_yes_no_query("Do you want to delete " + expid + " ?"): File "/shared/earth/python2.7/autosubmit/autosubmit.py", line 1465, in _user_yes_no_query return strtobool(input().lower()) File "", line 1, in NameError: name 'y' is not defined