Return default from the validation function

[ldv1]

Hi,

I defined my own validation function:

def is_mytype(value,*options):
            …

and so

val = Validator({'mytype': is_mytype })

In the spec file I have

key = mytype(“john”,”jack”,”patrick”,default=list(“john”))

If the value of this key is missing or “” in the configuration file, then an error is raised.
Only if the key is missing, then it is set to the default, here key = [ “john” ]

I would like to return in my validation function the default if value is empty, e.g.

def is_mytype(value,*options):
            if not value:
                        return default
            ...

How could I do that ?
Or is it possible that the default be returned if the value is missing in the configuration file or "" ?
Thanks for the help!