import feedparser
url = "http://www.biopop.de/feed"
fp = feedparser.parse(url)
for item in fp:
print(item.title, item.id, item.published, item.updated)
print(fp.etag)Python – Das Datum von gestern
from datetime import datetime, timedelta
(datetime.now() - timedelta(1)).strftime('%Y-%m-%d')