hook called several times if file already exists

[LegITdevel]

def my_hook(d):
    if d['status'] == 'finished':
        print('Done downloading, now converting ...')


ydl_opts = {
    'format': 'bestaudio/best',
    'postprocessors': [{
        'key': 'FFmpegExtractAudio',
        'preferredcodec': 'mp3',
        'preferredquality': '192',
    }],
    'logger': MyLogger(),
    'progress_hooks': [my_hook],
}
with youtube_dl.YoutubeDL(ydl_opts) as ydl:
    ydl.download(['http://www.youtube.com/watch?v=BaW_jenozKc'])

---

if the file already exists, the hook function is called several times for unknown reason

[dstftw]

The hook is called arbitrary number of times when downloading to report progress. It does not matter whether mp3 already exists or not since it does not download mp3.