human
Solve the following python programming problem given the following code:
def fromstring(stringrep, fieldsep = '\t') : 
    'Parse the string representation of a dataset and return a Dataset instance.
    
    See the documentation for fromfile() for information about file format.
    
    ' 
    def dataitem(item, v) : 
        item = item.strip () 
        intervention = False 
        missing = False 
        if (item [0] == '!') : 
            intervention = True 
            item = item [1 :] 
else : 
            if (item [(- 1)] == '!') : 
                intervention = True 
                item = item [: (- 1)] 
if ((item [0] in ('x', 'X')) or (item [(- 1)] in ('x', 'X'))) : 
            missing = True 
            item = ('0' if (not isinstance (v, ClassVariable)) else v.labels [0]) 
val = item 
        if isinstance (v, ClassVariable) : 
            try : 
                val = v.label2int [val] 
except KeyError : 
                raise ClassVariableError () 
else : 
            if isinstance (v, DiscreteVariable) : 
                try : 
                    val = int (val) 
except ValueError : 
                    msg = ('Invalid value for discrete variable %s: %s' % (v.name, val)) 
                    raise ParsingError (msg) 
else : 
                if isinstance (v, ContinuousVariable) : 
                    try : 
                        val = float (val) 
except ValueError : 
                        msg = ('Invalid value for continuous variable %s: %s' % (v.name, val)) 
                        raise ParsingError (msg) 
else : 
                    if ('.' in val) : 
                        try : 
                            val = float (val) 
except : 
                            msg = ('Cannot convert value %s to a float.' % val) 
                            raise ParsingError (msg) 
else : 
                        try : 
                            val = int (val) 
except : 
                            msg = ('Cannot convert value %s to an int.' % val) 
                            raise ParsingError (msg) 
return (val, missing, intervention) 
dtype_re =...

    
    

    Fix the buggy line: variables = N.array ([variable (dataitem) for v in variables])
assistant
#Here is Python code to fix the buggy line: variables = N.

variables = N.array ([variable (v) for v in variables])