Script to cut subclip from a video via Moviepy

cut.py

import argparse
from moviepy.editor import *

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Cut parts of video clip")
    parser.add_argument(
        "source",
        metavar="Source",
        help="Input filename"
    )
    parser.add_argument(
        "start",
        metavar="Start",
        help="First second"
    )
    parser.add_argument(
        "finish",
        metavar="Finist",
        help="Last second"
    )
    parser.add_argument(
        "output",
        metavar="Output",
        help="Output filename"
    )
    args = parser.parse_args()
    src = VideoFileClip(args.source)
    cut = src.subclip(float(args.start), float(args.finish))
    cut.write_videofile(args.output,fps=24,codec='libx264')