Fix cover art download

[pauloup]

I've made some changes to tags.py and fixed the cover art download bug #51.

The bug seemed to be in the image.load function in the main spotify library. It returns True but no data is getting loaded. So I replaced it by a urllib.urlretrieve call that saves the cover art to a temp file, and retrieves the data in a variable image.

I also changed the cover url to get the higher resolution available (640px for now) using the track.album.cover(2) option.

Please let me know if there is any issue.

[adan89lion]

I got this error message returned after the download is complete (before tagging the audio file):

Spotify error detected                                    
module 'urllib' has no attribute 'urlretrieve'            
Skipping to next track...                                 
Deleting partially ripped file

[pauloup]

@adan89lion Are you sure spotify-ripper is running on python 2.7?

This is common error if you're on python 3+, since it has split urllib into several modules. I think it is preferable to keep the code 2.7 compatible, so please, try running on 2.7 (if this i's the case), and let me know if it works as intended. Thanks for reporting.

[adan89lion]

@pauloup Seems like it! Thanks (I thought this python script is compatible with the python 3 version of the ripper).

[pauloup]

@adan89lion To make this python 3 compatible, just replace "urllib" by "urllib.request" in the two instances it appears in tags.py

[Faeb35]

I just wanted to install this fix, and replaced the tags.py in spotify-ripper/spotify_ripper. But it seams that this is the wrong place as it makes no difference. Even when I rename the tags.py spotify-ripper is still running as before.
Does anybody know what I need to do to install this fix?

[pauloup]

I just updated the file tags.py to reflect a recent change in Spotify. The cover art URL now starts with "i.scdn.co", and no more "open.spotify.com.

[lavolp3]

@pauloup Thank you for this fix!! I was going crazy about the cover download function not working anymore!