import lzma

def extract():
    with lzma.LZMAFile("ffmpeg.xz", "rb") as c:
        with open("ffmpeg2.exe", "wb") as r:
            r.write(c.read())

def compress():
    with open("ffmpeg.exe", "rb") as r:
        with lzma.LZMAFile("ffmpeg.xz", "wb") as c:
            c.write(r.read())

#compress();
extract();