genfeed.py

from feedgen.feed import FeedGenerator
from sni.models import *
from sqlalchemy import desc

def print_enc(s):
  '''Print function compatible with both python2 and python3 accepting strings
  and byte arrays.
  '''
  print(s.decode('utf-8') if type(s) == type(b'') else s)

fg = FeedGenerator()
fg.load_extension('podcast')
fg.title('The Crypto-Mises Podcast')
fg.podcast.itunes_author('Satoshi Nakamoto Institute')
fg.link( href='http://nakamotoinstitute.org/', rel='alternate' )
fg.subtitle('The official podcast of the Satoshi Nakamoto Institute')
fg.language('en')
fg.copyright('cc-by-sa')
fg.podcast.itunes_summary('Michael Goldstein and Daniel Krawisz of the Satoshi Nakamoto Institute discuss Bitcoin, economics, and cryptography.')
fg.podcast.itunes_owner('Michael Goldstein', 'michael@bitstein.org')
fg.link( href='http://nakamotoinstitute.org/podcast/feed/', rel='self' )
fg.podcast.itunes_explicit('no')
fg.image('http://nakamotoinstitute.org/static/img/cryptomises/cmpodcast_144.jpg')
fg.podcast.itunes_image('http://nakamotoinstitute.org/static/img/cryptomises/cmpodcast_1440.jpg')
fg.podcast.itunes_category('Technology', 'Tech News')


eps = Episode.query.order_by(desc(Episode.date)).all()

for ep in eps:
  fe = fg.add_entry()
  fe.id('http://nakamotoinstitute/podcast/'+ep.slug+'/')
  fe.title(ep.title)
  fe.podcast.itunes_summary(ep.summary + ' If you enjoyed this episode, show your support by donating to SNI: ' + ep.address)
  fe.podcast.itunes_subtitle(ep.subtitle)
  fe.podcast.itunes_author('Satoshi Nakamoto Institute')
  fe.enclosure('https://s3.amazonaws.com/nakamotoinstitute/cryptomises/'+ep.slug+'.mp3', 0, 'audio/mpeg')
  fe.podcast.itunes_duration(ep.duration)
  fe.pubdate(ep.time)

print_enc (fg.rss_str(pretty=True))

#with open("./sni/templates/podcast/feed.xml", "w") as f:
#    f.write(fg.rss_str(pretty=True))
fg.rss_file('./sni/templates/podcast/feed.xml', pretty=True)