python正则findall

import re
import codecs

operation_list = []
operation_list_sort = []
with codecs.open(r'C:\Users\Administrator.SC-201812211013\PycharmProjects\untitled29\yiwoqu\code\xianbingshi_write.txt','r','utf8') as f:
    for line in f:
        line = re.findall('行.*?术',line)
        operation_list.append(line)

for line in operation_list:
    if line not in operation_list_sort:
        operation_list_sort.append(line)
for line in operation_list_sort:
    for line in line:
        print(line)