quick/dirty Python script to use Docker for legacy Perl code to manage MP3/Id3 tags

tags.py

import sys
import os
from pprint import pprint
import re

with open('list.txt', 'r') as f:
    data = f.read()

filenames = [line for line in data.split('\n') if line]

for fn in filenames:
    result = re.match(r'^Pimsleur - Turkish - Lesson (\d{2}).mp3$', fn)
    track_string = result.group(1)
    track_num = int(track_string)

    year = 2006
    title = 'Turkish - Unit %s' % track_string
    artist = 'Pimsleur'
    album = 'Turkish'
    genre = 'Language'
    total_trax = 30

    t1 = """docker run --rm -v "$PWD":/data mp3info2 \\
        /usr/local/bin/DropTags.pl '/data/{filename}'"""
    command = t1.format(filename=fn)
    print(command)

    template = """docker run --rm -v "$PWD":/data mp3info2 \\
        /usr/local/bin/mp3info2 -t '{title}' -a '{artist}' \\
            -l '{album}' -c '' -y {year} -g '{genre}' -n {num}/{total_trax} \\
            -2 '/data/{filename}'"""
    command = template.format(
        year=year,
        title=title,
        artist=artist,
        album=album,
        genre=genre,
        num=track_num,
        total_trax=total_trax,
        filename=fn
    )
    print(command)