精典python脚本，值得收藏哦

#!/usr/bin/env python
#encoding=utf-8
import redis,codecs,sys
reload(sys)
sys.setdefaultencoding('utf-8')
class Unbuffered:
    def __init__(self, stream):
        self.stream = stream

    def write(self, data):
        self.stream.write(data)
        self.stream.flush()

    def __getattr__(self, attr):
        return getattr(self.stream, attr)

r=redis.Redis(host='localhost',db=6)
sys.stdout = Unbuffered(sys.stdout)
keys=r.keys()
print len(keys)

def read_keys():
    f=codecs.open("query_keys.txt","w","utf-8")
    #print r.info()
    for key in keys:
        print key
        #print type(key)
        f.write("%s\n"%(key,))
    f.close()

def read_relevent_words():
    f=codecs.open("query_relevent_words.txt","w","utf-8")
    for key in keys:
#        print r.get(key)
        f.write("%s\n"%(r.get(key),))
    f.close()

def parser_one_line_one_words():
    ff=codecs.open("parser_one_line_one_words.txt","w","utf-8")
    f=codecs.open("query_relevent_words.txt","r","utf-8")
    for line in f.readlines():
        li=line.strip().split("*")
        for elem in li:
            ff.write("%s\n"%(elem,))
    ff.close()


def parser_one_line_one_words2():
    s=set()
    ff=codecs.open("parser_one_line_one_words.txt","w","utf-8")
    f=codecs.open("query_relevent_words.txt","r","utf-8")
    for line in f.readlines():
        li=line.strip().split("*")
        for elem in li:
            s.add(elem.strip())
            ff.write("%s\n"%(elem,))
    ff.close()
    print len(s)

if __name__=="__main__":
#    read_relevent_words()
    parser_one_line_one_words2()