Replace the 2 number in a file name to get the correct format in python

Considering the data in the data.txt file, then string replace using regular expression can be done in the following way. Output will be generated in output.txt

import re


def replaceString(d, prefx='E'):
    val = re.findall(r'\d{2}\b', d)
    if(len(val) > 0):
        d = (prefx+val[-1]).join(d.rsplit(val[-1], 1))
        print(d)
    return d


def handleData():
    prefx="E"
    file1 = open('data.txt', 'r')
    file2 = open('output.txt','w+')

    for line in file1.readlines():
        if not line.strip():
            continue
        line=replaceString(line,prefx)
        file2.write(line)
    file1.close()
    file2.close()
handleData()

input data.txt:

Love Scene (2021) 01 TMP.mp4

Love.Scene.2021 02.TMP.mp4

Love.Scene.2021.03.TMP.mp4

LoveScene04.TMP.mp4

output:

Love Scene (2021) E01 TMP.mp4
Love.Scene.2021 E02.TMP.mp4
Love.Scene.2021.E03.TMP.mp4
LoveSceneE04.TMP.mp4