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			386 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			386 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| #!/usr/bin/env python
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| # -*- coding: UTF-8 -*-
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| 
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| from core.misc import getInputLink
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| from core.misc import trimSong
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| from core.misc import getArgs
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| from core.misc import isSpotify
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| from core.misc import generateSearchURL
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| from core.misc import fixEncoding
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| from core.misc import graceQuit
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| from bs4 import BeautifulSoup
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| from shutil import copyfileobj
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| import sys
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| from slugify import slugify
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| from titlecase import titlecase
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| from mutagen.id3 import ID3, APIC
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| from mutagen.easyid3 import EasyID3
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| from mutagen.mp4 import MP4, MP4Cover
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| import spotipy
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| import spotipy.oauth2 as oauth2
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| import urllib2
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| import pafy
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| import os
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| 
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| def generateSongName(raw_song):
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|     if isSpotify(raw_song):
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|         tags = generateMetaTags(raw_song)
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|         raw_song = tags['artists'][0]['name'] + ' - ' + tags['name']
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|     return raw_song
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| 
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| def generateMetaTags(raw_song):
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|     try:
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|         if isSpotify(raw_song):
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|             meta_tags = spotify.track(raw_song)
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|         else:
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|             meta_tags = spotify.search(raw_song, limit=1)['tracks']['items'][0]
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|         artist_id = spotify.artist(meta_tags['artists'][0]['id'])
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| 
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|         try:
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|             meta_tags['genre'] = titlecase(artist_id['genres'][0])
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|         except IndexError:
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|             meta_tags['genre'] = None
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| 
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|         meta_tags['release_date'] = spotify.album(meta_tags['album']['id'])['release_date']
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|         return meta_tags
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| 
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|     except BaseException:
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|         return None
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| 
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| def generateYouTubeURL(raw_song):
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|     song = generateSongName(raw_song)
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|     searchURL = generateSearchURL(song)
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|     item = urllib2.urlopen(searchURL).read()
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|     items_parse = BeautifulSoup(item, "html.parser")
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|     check = 1
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|     if args.manual:
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|         links = []
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|         print(song)
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|         print('')
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|         print('0. Skip downloading this song')
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|         for x in items_parse.find_all('h3', {'class': 'yt-lockup-title'}):
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|             if not x.find('channel') == -1 or not x.find('googleads') == -1:
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|                 print(str(check) + '. ' + x.get_text())
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|                 links.append(x.find('a')['href'])
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|                 check += 1
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|         print('')
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|         result = getInputLink(links)
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|         if result is None:
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|             return None
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|     else:
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|         result = items_parse.find_all(
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|             attrs={'class': 'yt-uix-tile-link'})[0]['href']
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|         while not result.find('channel') == - \
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|                 1 or not result.find('googleads') == -1:
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|             result = items_parse.find_all(
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|                 attrs={'class': 'yt-uix-tile-link'})[check]['href']
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|             check += 1
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|     full_link = "youtube.com" + result
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|     return full_link
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| 
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| def goPafy(raw_song):
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|     trackURL = generateYouTubeURL(raw_song)
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|     if trackURL is None:
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|         return None
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|     else:
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|         return pafy.new(trackURL)
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| 
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| def getYouTubeTitle(content, number):
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|     title = content.title
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|     if number is None:
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|         return title
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|     else:
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|         return str(number) + '. ' + title
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| 
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| def feedTracks(file, tracks):
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|     with open(file, 'a') as fout:
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|         for item in tracks['items']:
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|             track = item['track']
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|             try:
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|                 fout.write(track['external_urls']['spotify'] + '\n')
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|             except KeyError:
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|                 pass
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| 
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| def feedPlaylist(username):
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|     playlists = spotify.user_playlists(username)
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|     links = []
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|     check = 1
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|     for playlist in playlists['items']:
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|         print(str(check) + '. ' + fixEncoding(playlist['name']) + ' (' + str(playlist['tracks']['total']) + ' tracks)')
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|         links.append(playlist)
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|         check += 1
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|     print('')
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|     playlist = getInputLink(links)
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|     results = spotify.user_playlist(playlist['owner']['id'], playlist['id'], fields="tracks,next")
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|     print('')
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|     file = slugify(playlist['name'], ok='-_()[]{}') + '.txt'
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|     print('Feeding ' + str(playlist['tracks']['total']) + ' tracks to ' + file)
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|     tracks = results['tracks']
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|     feedTracks(file, tracks)
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|     while tracks['next']:
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|         tracks = spotify.next(tracks)
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|         feedTracks(file, tracks)
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| 
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| # Generate name for the song to be downloaded
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| def generateFileName(content):
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|     title = (content.title).replace(' ', '_')
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|     title = slugify(title, ok='-_()[]{}', lower=False)
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|     return fixEncoding(title)
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| 
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| def downloadSong(content, input_ext):
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|     music_file = generateFileName(content)
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|     if input_ext == '.webm':
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|         link = content.getbestaudio(preftype='webm')
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|         if link is not None:
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|             link.download(filepath='Music/' + music_file + input_ext)
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|     else:
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|         link = content.getbestaudio(preftype='m4a')
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|         if link is not None:
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|             link.download(filepath='Music/' + music_file + input_ext)
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| 
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| def convertWithAvconv(music_file, input_ext, output_ext, verbose):
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|     if os.name == 'nt':
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|         avconv_path = 'Scripts\\avconv.exe'
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|     else:
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|         avconv_path = 'avconv'
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|     os.system(
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|         avconv_path + ' -loglevel 0 -i "' +
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|         'Music/' +
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|         music_file +
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|         input_ext + '" -ab 192k "' +
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|         'Music/' +
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|         music_file +
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|         output_ext + '"')
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|     os.remove('Music/' + music_file + input_ext)
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| 
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| def convertWithFfmpeg(music_file, input_ext, output_ext, verbose):
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|     # What are the differences and similarities between ffmpeg, libav, and avconv?
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|     # https://stackoverflow.com/questions/9477115
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|     # ffmeg encoders high to lower quality
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|     # libopus > libvorbis >= libfdk_aac > aac > libmp3lame
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|     # libfdk_aac due to copyrights needs to be compiled by end user
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|     # on MacOS brew install ffmpeg --with-fdk-aac will do just that. Other OS?
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|     # https://trac.ffmpeg.org/wiki/Encode/AAC
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|     #
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|     print(music_file, input_ext, output_ext, verbose)
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|     if verbose:
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|         ffmpeg_pre = 'ffmpeg -y '
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|     else:
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|         ffmpeg_pre = 'ffmpeg -hide_banner -nostats -v panic -y '
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| 
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|     if input_ext == '.m4a':
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|         if output_ext == '.mp3':
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|             ffmpeg_params = '-codec:v copy -codec:a libmp3lame -q:a 2 '
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|         elif output_ext == '.webm':
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|             ffmpeg_params = '-c:a libopus -vbr on -b:a 192k -vn '
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|         else:
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|             return
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|     elif input_ext == '.webm':
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|         if output_ext == '.mp3':
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|             ffmpeg_params = '-ab 192k -ar 44100 -vn '
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|         elif output_ext == '.m4a':
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|             ffmpeg_params = '-cutoff 20000 -c:a libfdk_aac -b:a 256k -vn '
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|         else:
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|             return
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|     else:
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|         print('Unknown formats. Unable to convert.', input_ext, output_ext)
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|         return
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| 
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|     if verbose:
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|         print(ffmpeg_pre +
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|               '-i "Music/' + music_file + input_ext + '" ' +
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|               ffmpeg_params +
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|               '"Music/' + music_file + output_ext + '" ')
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| 
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|     os.system(
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|         ffmpeg_pre +
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|         '-i "Music/' + music_file + input_ext + '" ' +
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|         ffmpeg_params +
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|         '"Music/' + music_file + output_ext + '" ')
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|     os.remove('Music/' + music_file + input_ext)
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| 
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| def checkExists(music_file, raw_song, islist):
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|     files = os.listdir("Music")
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|     for file in files:
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|         if file.endswith(".temp"):
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|             os.remove("Music/" + file)
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|             continue
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| 
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|         if file.startswith(music_file):
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|             # FIXME
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|             #audiofile = mutagen.load("Music/" + music_file + output_ext)
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|             #if isSpotify(raw_song) and not audiofile.tag.title == (
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|             #        generateMetaTags(raw_song))['name']:
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|             #    os.remove("Music/" + music_file + output_ext)
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|             #    return False
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|             os.remove("Music/" + file)
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|             return False
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|         if islist:
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|             return True
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|         else:
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|             prompt = raw_input(
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|                 'Song with same name has already been downloaded. Re-download? (y/n): ').lower()
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|             if prompt == "y":
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|                 os.remove("Music/" + file)
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|                 return False
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|             else:
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|                 return True
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| 
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| # Remove song from file once downloaded
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| def fixSong(music_file, meta_tags, output_ext):
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|     if meta_tags is None:
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|         print('Could not find meta-tags')
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|     elif output_ext == '.m4a':
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|         print('Fixing meta-tags')
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|         fixSongM4A(music_file, meta_tags, output_ext)
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|     elif output_ext == '.mp3':
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|         print('Fixing meta-tags')
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|         fixSongMP3(music_file, meta_tags, output_ext)
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|     else:
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|          print('Cannot embed meta-tags into given output extension')
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| 
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| def fixSongMP3(music_file, meta_tags, output_ext):
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|     audiofile = EasyID3('Music/' + music_file + output_ext)
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|     audiofile['artist'] = meta_tags['artists'][0]['name']
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|     audiofile['albumartist'] = meta_tags['artists'][0]['name']
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|     audiofile['album'] = meta_tags['album']['name']
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|     audiofile['title'] = meta_tags['name']
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|     if meta_tags['genre']:
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|         audiofile['genre'] = meta_tags['genre']
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|     audiofile['tracknumber'] = [meta_tags['track_number'], 0]
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|     audiofile['discnumber'] = [meta_tags['disc_number'], 0]
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|     audiofile['date'] = meta_tags['release_date']
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|     audiofile.save(v2_version=3)
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|     audiofile = ID3('Music/' + music_file + output_ext)
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|     albumart = urllib2.urlopen(meta_tags['album']['images'][0]['url'])
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|     audiofile["APIC"] = APIC(encoding=3, mime='image/jpeg', type=3, desc=u'Cover', data=albumart.read())
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|     albumart.close()
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|     audiofile.save(v2_version=3)
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| 
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| def fixSongM4A(music_file, meta_tags, output_ext):
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|     # eyed serves only mp3 not aac so using mutagen
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|     # Apple has specific tags - see mutagen docs -
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|     # http://mutagen.readthedocs.io/en/latest/api/mp4.html
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|     tags = {'album': '\xa9alb',
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|             'artist': '\xa9ART',
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|             'year': '\xa9day',
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|             'title': '\xa9nam',
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|             'comment': '\xa9cmt',
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|             'group': '\xa9grp',
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|             'writer': '\xa9wrt',
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|             'genre': '\xa9gen',
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|             'track': 'trkn',
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|             'aart': 'aART',
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|             'disk': 'disk',
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|             'cpil': 'cpil',
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|             'tempo': 'tmpo'}
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| 
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|     audiofile = MP4('Music/' + music_file + output_ext)
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|     audiofile[tags['artist']] = meta_tags['artists'][0]['name']
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|     audiofile[tags['album']] = meta_tags['album']['name']
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|     audiofile[tags['title']] = meta_tags['name']
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|     if meta_tags['genre']:
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|         audiofile[tags['genre']] = meta_tags['genre']
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|     audiofile[tags['year']] = meta_tags['release_date']
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|     audiofile[tags['track']] = [(meta_tags['track_number'], 0)]
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|     audiofile[tags['disk']] = [(meta_tags['disc_number'], 0)]
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|     albumart = urllib2.urlopen(meta_tags['album']['images'][0]['url'])
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|     audiofile["covr"] = [ MP4Cover(albumart.read(), imageformat=MP4Cover.FORMAT_JPEG) ]
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|     albumart.close()
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|     audiofile.save()
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| 
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| def convertSong(music_file, input_ext, output_ext, ffmpeg, verbose):
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|     print(music_file, input_ext, output_ext, ffmpeg, verbose)
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|     if not input_ext == output_ext:
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|         print('Converting ' + music_file + input_ext + ' to ' + output_ext[1:])
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|         if ffmpeg:
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|             convertWithFfmpeg(music_file, input_ext, output_ext, verbose)
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|         else:
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|             convertWithAvconv(music_file, input_ext, output_ext, verbose)
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|     else:
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|         print('Skipping conversion since input_ext = output_ext')
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| 
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| 
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| # Logic behind preparing the song to download to finishing meta-tags
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| def grabSingle(raw_song, number=None):
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|     if number:
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|         islist = True
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|     else:
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|         islist = False
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|     content = goPafy(raw_song)
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|     if content is None:
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|         return
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|     print(getYouTubeTitle(content, number))
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|     music_file = generateFileName(content)
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|     if not checkExists(music_file, raw_song, islist=islist):
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|         downloadSong(content, args.input_ext)
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|         print('')
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|         if not args.no_convert:
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|             convertSong(music_file, args.input_ext, args.output_ext, args.ffmpeg, args.verbose)
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|             meta_tags = generateMetaTags(raw_song)
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|             fixSong(music_file, meta_tags, args.output_ext)
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| 
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| # Fix python2 encoding issues
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| def grabList(file):
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|     lines = open(file, 'r').read()
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|     lines = lines.splitlines()
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|     # Ignore blank lines in file (if any)
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|     try:
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|         lines.remove('')
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|     except ValueError:
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|         pass
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|     print('Total songs in list = ' + str(len(lines)) + ' songs')
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|     print('')
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|     # Count the number of song being downloaded
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|     number = 1
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|     for raw_song in lines:
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|         try:
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|             grabSingle(raw_song, number=number)
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|             trimSong(file)
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|             number += 1
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|             print('')
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|         except KeyboardInterrupt:
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|             graceQuit()
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|         except ConnectionError:
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|             lines.append(raw_song)
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|             trimSong(file)
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|             with open(file, 'a') as myfile:
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|                 myfile.write(raw_song)
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|             print('Failed to download song. Will retry after other songs.')
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| 
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| 
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| if __name__ == '__main__':
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| 
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|     # Python 3 compatibility
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|     if sys.version_info > (3, 0):
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|         raw_input = input
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| 
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|     os.chdir(sys.path[0])
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|     if not os.path.exists("Music"):
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|         os.makedirs("Music")
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| 
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|     # Please respect this user token :)
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|     oauth2 = oauth2.SpotifyClientCredentials(
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|         client_id='4fe3fecfe5334023a1472516cc99d805',
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|         client_secret='0f02b7c483c04257984695007a4a8d5c')
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|     token = oauth2.get_access_token()
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|     spotify = spotipy.Spotify(auth=token)
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| 
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|     # Set up arguments
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|     args = getArgs()
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|     print(args)
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| 
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|     #if args.ffmpeg:
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|     #    input_ext = args.input_ext
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|     #    output_ext = args.output_ext
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|     #else:
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|     #    input_ext = '.m4a'
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|     #    output_ext = '.mp3'
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| 
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|     if args.song:
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|         grabSingle(raw_song=args.song)
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|     elif args.list:
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|         grabList(file=args.list)
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|     elif args.username:
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|         feedPlaylist(username=args.username)
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