Split an audio file by start times using `ffmpeg`

audiosplit.py

import argparse
import subprocess

parser = argparse.ArgumentParser()
parser.add_argument("file", help="file to split")
parser.add_argument("name_and_time", type=lambda x: x.rsplit(
    "_", 1), nargs="+", help="[name]_[time to split on]")
args = parser.parse_args()

file_extension = args.file.split(".")[-1]

for index, (file_name, start_time) in enumerate(args.name_and_time):
    f = f"{file_name}.{file_extension}"
    if index == len(args.name_and_time) - 1:
        subprocess.check_call(
            ["ffmpeg", "-i", args.file, "-acodec", "copy", "-ss", start_time, f])
    else:
        subprocess.check_call(["ffmpeg", "-i", args.file, "-acodec", "copy",
                               "-ss", start_time, "-to", args.name_and_time[index + 1][1], f])