[Configobj-develop] check function for list of list of integers

[Faheem M. <fa...@fa...>]

Hi

I'm trying to use configobj's validate module to validate and convert
a list of lists of integers.

However, it is not working. The value is

model = [[5, 6], [7, 13, 18], [9, 22], [10, 12], [15, 16, 17], [20, 21]]

I call the validation like

model = check_list_of_list_of_integers

Here is the check function and the error below.

#####################################################################

def list_of_list_of_integers(value):
     print "value", value
     print "type(value)", type(value)
     l = eval(value)
     try:
         list(l)
     except:
         raise "error"
     return l

   fdict = {'check_list_of_list_of_integers': list_of_list_of_integers}
     validator = validate.Validator(fdict)

######################################################################

I'm calling 'eval' on the value, which might not be the best idea, but
should work if the value is a string. However, the value is converted
to a list of strings on entrance to the "list_of_list_of_integers"
function, even though I have not asked for it to be so converted.

Any idea what is going on and how I can fix this?

Please CC me on any reply. Thanks.

                                                 Regards, Faheem Mitha


value ['[[5', '6]', '[7', '13', '18]', '[9', '22]', '[10', '12]', '[15',
'16', '17]', '[20', '21]]']
type(value) <type 'list'>
Traceback (most recent call last):
   File "load_crossval.py", line 29, in <module>
     conf = get_conf()
   File "/home/faheem/corrmodel/utils.py", line 70, in get_conf
     results = config.validate(validator, preserve_errors=True)
   File "/usr/lib/pymodules/python2.6/configobj.py", line 2295, in validate
     check = self.validate(validator, preserve_errors=preserve_errors,
copy=copy, section=section[entry])
   File "/usr/lib/pymodules/python2.6/configobj.py", line 2251, in validate
     missing, ret_true, ret_false)
   File "/usr/lib/pymodules/python2.6/configobj.py", line 2190, in
validate_entry
     missing=missing
   File "/usr/lib/pymodules/python2.6/validate.py", line 597, in check
     return self._check_value(value, fun_name, fun_args, fun_kwargs)
   File "/usr/lib/pymodules/python2.6/validate.py", line 629, in
_check_value
     return fun(value, *fun_args, **fun_kwargs)
   File "/home/faheem/corrmodel/utils.py", line 46, in
list_of_list_of_integers
     l = eval(value)
TypeError: eval() arg 1 must be a string or code object