Vad får man kommentera på DN.se

dnkommentar.py

""" To run first
    touch old_url.txt
    touch data.txt
    requires requests and feedparser (available through pip)
"""
import requests
import feedparser
rss = 'http://www.dn.se/nyheter/m/rss/senaste-nytt'
old_urls_file = 'old_url.txt'
data_file = 'data.txt'
def main():
    feed = feedparser.parse(rss)
    old_str = open(old_urls_file, 'r').read()
    old = open(old_urls_file, "a")
    new = open(data_file, 'a')
    for item in feed['items']:
        if item['link'] not in old_str:
            comment = check_url_for_comment(item['link'])
            old.write(item['link']+u"\n")
            new.write((comment + u"\t " + item['title'] + u"\t " + item['date'] + u"\t " + item['link'] + "\n").encode("utf-8"))

def check_url_for_comment(url):
    r = requests.get(url)
    if r.status_code == 200:
        body = r.content
        if 'class="comments"' in body:
            return u"True"
        else:
            return u"False"
    else:
        raise Exception("Unable to access DN.se")

main()