Mike Pirnat

#!/usr/bin/env python
 
import datetime
from dateutil.rrule import rrule, DAILY, WEEKLY, MONTHLY
import PyRSS2Gen as RSS2
 
# You'll want to change all of these values, obviously...
KID_NAME = u'Claire'
BIRTHDAY = datetime.datetime(2007, 9, 10, 21, 57)
FEED_URL = 'http://yoursite/kids_age.xml'
FILENAME = 'your_path/kids_age.xml'
 
def periods_between(freq, start_date, end_date):
    rr = rrule(freq, dtstart=start_date)
    periods = len(rr.between(start_date, end_date))
    return periods
 
def format_entry_body(months, weeks, days):
    body = """<h1>Today, %(kid_name)s Is...</h1>
    <ul>
        <li>%(months)s months</li>
        <li>%(weeks)s weeks</li>
        <li>%(days)s days</li>;
    </ul>
    <p>They grow up so fast!</p>"""
    kid_name = KID_NAME    # so we can cheat with locals()
    return body % locals()
 
def make_rss(body):
    now = datetime.datetime.now()
    # Add a hash component to the item link so that the RSS reader
    # will recognize this as today's new entry...
    item_url = FEED_URL+'#'+now.strftime('%Y%m%d')
    rss = RSS2.RSS2(
        title=u"How Old Is %s?" % KID_NAME,
        link=FEED_URL,
        description=u"How old is %s in months, weeks, and days" \
            % KID_NAME,
        lastBuildDate=now,
 
        items = [
            RSS2.RSSItem(
                title=u"How old is %s today?" % KID_NAME,
                link=item_url,
                description=body,
                guid=RSS2.Guid(item_url),
                pubDate=now,
            )
        ]
    )
    return rss
 
def to_xml(rss):
    xml = rss.to_xml()
    # Make our xml at least a tiny bit human-readable
    xml = xml.replace('><', '>\n<')
    return xml
 
def main():
    now = datetime.datetime.now()
    months = periods_between(MONTHLY, BIRTHDAY, now)
    weeks = periods_between(WEEKLY, BIRTHDAY, now)
    days = periods_between(DAILY, BIRTHDAY, now)
    body = format_entry_body(months, weeks, days)
    rss = make_rss(body)
    xml = to_xml(rss)
    f = open(FILENAME, 'w')
    f.write(xml)
    f.close()
 
if __name__ == '__main__':
    main()