helper_unicode

def from_unicode_string(**kwargs):
    """
    convierte cadenas unicodes a cadenas simples, en un diccionario
    """

    for k, v in kwargs.iteritems():
        if isinstance(v, list):
            tmp = []
            for lv in v:
                tmp.append(str(lv))
                kwargs[k] = tmp
        elif isinstance(v, unicode):
            kwargs[k] = str(v)

    return kwargs