A script to convert m3u files with absolute paths to m3u files with relative paths. The original file will be overwritten! Just call using "python m3uconverter.py path/to/folder"

m3uconverter.py

import codecs
import glob
import os
import sys


def parse(file, encoding="utf-8-sig"):
    fp = codecs.open(file, "r", encoding=encoding)
    lines = fp.readlines()
    fp.close()

    root = os.path.dirname(file)

    new_lines = []
    for line in lines:
        line = line.strip()
        if not line == "" and not line[0] == "#" and (line[1] == ":" or line[0] == "/"):
            line = os.path.relpath(line.strip(), root)
            print(line)

        new_lines.append(line)

    fp = open(file, "w", encoding=encoding, newline="\r\n")
    fp.write("\n".join(new_lines))


path = sys.argv[1]
enc = sys.argv[2] if len(sys.argv) >= 3 else "utf-8-sig"
if os.path.isdir(path):
    for f in glob.glob(path + "/**/*", recursive=True):
        if f.endswith(".m3u") or f.endswith(".m3u8"):
            print(f)
            parse(f, enc)
            print("")
else:
    parse(path, enc)