def st(d=False):
""" short for sentence, d = delete signal """
used_index = set(st_dict.keys())
index_pool = set(range(100000))
usable_index = index_pool - used_index
next_index = sorted(list(usable_index))[0]
sentence = raw_input('please type the sentence below:\n\n')
exist_sentence = set([x['sentence'] for x in st_dict.values()])
if sentence not in exist_sentence:
st_dict[next_index] = {'forget_score': 0, 'sentence': sentence}
save()
def show_st(exam=False):
temp = []
for index in sorted(st_dict.keys(), key=lambda x: st_dict[x]['forget_score']):
sentence = st_dict[index]['sentence']
if not exam:
print 'index: ', index,'\n'
print sentence, '\n\n'
else:
temp.append((index, sentence))
if exam:
return temp
