[web2py] New error after installing 2.2.1 version

[Julien Courteau]

Hello All,
After converting to 2.2.1 I've got the following error message:
"<type 'exceptions.TypeError'> format requires a mapping"

when I try to log on for accessing an action that requires authentification 
/ authaurization such as:
@auth.requires_membership('admin')
def  f(): ...

Here is an extract of the traceback:


            *File /home/julien/web2py/gluon/languages.py inparams_substitution 
at line 
855* 
Function argument list            

(self=<gluon.languages.translator object>, 
message='User %(id)s Logged-in', symbols=("<Row \x1e'username': 
'julien', 'first_name': 'Julie...f9da1adefd98', 'registration_key': '', 
'id': 12\x1f>",))
Code listing         

850.
851.
852.
853.
854.
855.

856.
857.
858.
859.

            if part == s:
                part = regex_plural_dict.sub(sub_dict, s)
                if part == s:
                    return m.group(0)
            return part
        message = message % symbols

        message = regex_plural.sub(sub_plural, message)
        return message

    def translate(self, message, symbols):

           Variables                   symbols("<Row \x1e'username': 
'julien', 'first_name': 'Julie...f9da1adefd98', 'registration_key': '', 
'id': 12\x1f>",)message'User %(id)s Logged-in'

Anybody have a clue?

Thanks.

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