from logger import Logger

class Params(object):
        def __init__(self, e):
                Logger.log("Params: %s" % str(e))
                for k in e.keys():
                        self.__dict__[k] = e[k][0]

        def __getattr__(self, a):
                return ''

        def get(self, k):
            if self.__dict__.has_key(k):
                return self.__dict__[k]
            else:
                return ''

        def check_existance(self, l):
                for i in l:
                        if not self.__dict__.has_key(i):
                                raise KeyError, i

        def items(self):
            for k in self.__dict__.keys():
                yield (k, self.__dict__[k])
            return

        def __str__(self):
                return str(self.__dict__)