用Python怎么将这个记事本前八行按以下规则排序啊？

Question

#记事本（input.txt）内容如下：

  "The Canterbury Tales" by Chaucer, G.
 "The Canterbury Taless" by Chaucer, B.
 "Algorithms" by Sedgewick, R.
 "The C Programming Language" by Kernighan, B. and Ritchiee, D.
 "The C Programming Languag" by Kernighan, B. and Ritchiee, D.
 "The D Programming Language" by Kernighan, B. and Ritchiee, D.
 "A House for Mr. Biswas" by Naipaul, V.S.
 "A Congo Diary" by Naipaul, V.S.
 END

#说明：引号内是书名，by后面是作者名

#规则：作者名优先排序，作者名相同按书名排序

------谢谢各位大佬-------
 

Answer 1

import re

def fre(s):
    r = re.search(r'"(.+?)" by (.+)',s.strip())
    book = r.group(1)
    name = r.group(2)
    return (name,book)

with open(r'1.txt','r',encoding='utf-8') as f:
    li = f.readlines()
    li.sort(key=fre)
    print(*li,sep='')