Little fun script, that prints out an happy or unhappy smiley based upton the "+-/1" messages in the "I am goging to pycon"-Thread: http://www.python-forum.de/viewtopic.php?f=5&t=29566

smile4pycon.py

#!/usr/bin/env python

import re
from collections import defaultdict

import requests
from lxml import html

URL = r"http://www.python-forum.de/viewtopic.php?f=5&t=29566"

SMILEY = {True: ":-)", False: ":-("}


def main():
    root = html.fromstring(requests.get(URL).text)

    result = defaultdict(int)

    for post in root.xpath("//div[@class='postbody']/text()"):
        pattern = re.search(r"([+-])1", post)
        if pattern:
            result[pattern.groups()[0]] += 1

#    print(result)
    print(SMILEY[result["+"] >= result["-"]])


if __name__ == "__main__":
    main()