3rd refinement

third_sort.py

def cmp_to_key(col, covert_to_proper_datatype):
    #Discrad this approch, once we have an option to sort via webmethods, sorting by DB engine is more efficient than doing it ourselves.
    
    class K(object):
        def __init__(self, obj, *args):
            self.obj = obj
        def __lt__(self, other):
            return covert_to_proper_datatype(self.obj[col]) < covert_to_proper_datatype(other.obj[col])
    return K