Bug in 'progress_hooks' - 'speed' value is None depending on download location

[kereilly]

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I call youtube-dl from within my python script. I use progress_hooks to give the user feedback. the 'speed' key normally will provide the download speed, however depending on where i set 'outtmpl' to, where the file gets saved, the value of 'speed' is None. here are the options send to youtube-dl:

destination = directory_location + file_name + ".%(ext)s"

# options for youtube-dl
ydl_opts = {
    'logger': MyLogger(),
    'progress_hooks': [my_hook],
    'outtmpl': destination,
    'ignoreerrors': True,
}
try:
    # Lets download it now
    with YoutubeDL(ydl_opts, verbosity) as ydl:
        if verbosity >= 1:
            print ("Extracting information about the file to download")
        info = ydl.extract_info(url, download=False)
        download_target = ydl.prepare_filename(info)
        if verbosity >= 1:
            print ("Target download location: " + download_target)
        ydl_results = ydl.download([url])
        if verbosity >= 2:
            print ("\nThe output of ydl_results follows:")
            print (ydl_results)`


def my_hook(d):

# lets give the user some feedback
if d['status'] == 'downloading':
    # check and make sure 'speed' is not None. It can be sometimes
    if d['speed'] is not None:
        speed = "Download Speed: " + str(int(d['speed']/1024)) + " kb/s"
    else:
        speed = "Download Speed not available"
    # just in case do same with ETA
    if d['eta'] is not None:
        eta = "   ETA: " + str(d['eta'])
    else:
        eta = "ETA not available"
    text = "\r" + speed + eta
    sys.stdout.write(text)
    sys.stdout.flush()


# Logger for youtube-dl
class MyLogger(object):
    def debug(self, msg):
        pass

    def warning(self, msg):
        pass

    def error(self, msg):
        print(msg)

I can reproduce this behavior with 'speed' having a value of none when the 'outtmpl' is set to

'/Users/edit6/Desktop/RR299_Youtube_Test.%(ext)s'

however with the 'outtmpl' set to

'/Volumes/RR311-SANCTUARY_1/RR311_ARCHIVAL_FOOTAGE/RR299_Youtube_Test.%(ext)s'

'speed' will have its expected value. It didn't matter what url i was giving it although i only tried youtube links. Here was the url i was testing with in case it does matter:
https://www.youtube.com/watch?v=PXYeARRyDWk

I'm on Mac os X 10.11.6
Python: 2.7.10
youtube-dl: 2017.04.17

[kereilly]

of course now that I put

if d['speed'] is not None:

into my code this isn't an issue. Although initially, with the first example, the value of 'speed' is None, It does change and give the user the download speed. This bug is probably not really a problem if you write proper code, which initially i did not

[dstftw]

https://github.com/rg3/youtube-dl/blob/master/youtube_dl/YoutubeDL.py#L241-L242