import django.core.urlresolvers

import urllib

__BOOLEAN_DICT = {

    'false':False,

    'true':True,

    '0':False,

    '1':True,

    't': True,

    'f':False

}

def boolean_convert(bool):

    if bool is None:

        return False

    if bool is True or bool is False:

        return bool

    key = str(bool).lower()

    return __BOOLEAN_DICT.get(key, False)

def generate_uuid():

    return unicode(uuid.uuid1())

def normalize_tags(list):

    nlist=[]

    for tag in list:

        tag = tag.lower()

        nlist.append(tag)

    taglist = dict().fromkeys(nlist).keys()    

    return taglist