CODEWITHSUNDEEP
numbers
usphil
usphil

Reputation: 23

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

I have some kind of the file name:

Love Scene (2021) 01 TMP.mp4

Love.Scene.2021 02.TMP.mp4

Love.Scene.2021.03.TMP.mp4

LoveScene04.TMP.mp4

01, 02, 03, 04 is the episode number.

In a correct name, it should be:

Love Scene (2021) E01 TMP.mp4

Love.Scene.2021 E02.TMP.mp4

Love.Scene.2021.E03.TMP.mp4

LoveScene.E04.TMP.mp4

How to use Regular Expression to add "E" before the Episode number?

Upvotes: 2

Views: 34

Answers (1)

Lohith
Lohith

Reputation: 934

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

Upvotes: 1

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