如何比较2个txt文件的差异并输出到新的txt文件并使用python打印到shell

Question

How to compare difference in 2 txt files and output and print it to shell?

working files in this link

https://wetransfer.com/downloads/a866da75bab9f884275e190e6b3740e220211023033329/647011

Tried the code below doesn't output to a new file

import pandas as pd
import os


def compare(File1,File2):
with open(r'D:..\..\..\members_1.txt') as f:
    d=set(f.readlines())


with open(r'D:..\..\..\members_2.txt') as f:
    e=set(f.readlines())

open('D:..\\..\\..\\output.txt','w').close() #Create the file

with open('D:..\\..\\..\\','a') as f:
    for line in list(d-e):
       f.write(line)

Expected output:

Answer 1

of course use diff

difflib.Differ

Answer 2

Use drop_duplicates with Pandas:

df1 = pd.read_csv('members_1.txt', header=None).drop_duplicates()
df2 = pd.read_csv('members_2.txt', header=None).drop_duplicates()
out = pd.concat([df1, df2]).drop_duplicates(keep=False)

Output

>> print(*out[0].to_list(), sep='\n')
LEE RI KE
LIM YONG
KOH CHEE KIAT
LEE YONG
KOH CHEW KIAT
LEE RI KHEE

OR

Use set in Python:

with open('members_1.txt') as fp1, open('members_2.txt') as fp2:
    data1 = set([l.strip() for l in fp1])
    data2 = set([l.strip() for l in fp2])
    out = data1.symmetric_difference(data2)

Output:

>>> print(*out, sep='\n')
KOH CHEW KIAT
LEE RI KE
LEE YONG
KOH CHEE KIAT
LEE RI KHEE
LIM YONG