[web2py] problem with update

[cabildocl]

hi, i have a problem from to update web2py  to latest version, the error is 
the next:

Ticket ID 

10.0.0.28.2012-12-17.11-32-22.3cb0b23c-4656-47da-8acd-5a44016ed107
<type 'exceptions.ValueError'> invalid literal for int() with base 10: '-1 
day,'

Function argument list 

(self=<gluon.dal.MySQLAdapter object at 0x8e030ac>, 
value=datetime.timedelta(-1, 41400), field_type='time')
 Code listing 

1837.
1838.
1839.
1840.
1841.
1842.

1843.
1844.
1845.
1846.

            value = datetime.date(y, m, d)
        return value

    def parse_time(self, value, field_type):
        if not isinstance(value, datetime.time):
            #time_items = map(int,str(value)[:8].strip().split(':')[:3])

            if len(time_items) == 3:
                (h, mi, s) = time_items
            else:
                (h, mi, s) = time_items + [0]

 Variables builtinlen <built-in function len>  time_items undefined

this worked ok, your help please




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