Sitemap generator in python with a mustache template

sitemap.py

import sys
import codecs
import pystache
import os
import fnmatch
import string
import datetime

webroot = 'http://www.example.com/
path = '/var/www/'

def getUrlsFromDirectory(root=os.curdir):
    for path, dirs, files in os.walk(os.path.abspath(root)):
        for filename in fnmatch.filter(files, "*.html"):
            yield os.path.join(path.replace(os.path.abspath(root), ''), filename)


template = open('./template.xml').read().decode('utf8')
urls = []
dtnow = datetime.datetime.now().isoformat()

# The template waits for data as
# {
#   'root' : The root URL,
#   'urls' : [{
#       'loc' : 'page1.html',
#       'lastmod' : '2012-07-18T14:59:22.354039',
#       'changefreq' : 'daily'
#    },{
#       'loc' : 'page2.html',
#       'lastmod' : '2012-07-18T14:59:22.354039',
#       'changefreq' : 'weekly'
#    }]
# }}

for url in getUrlsFromDirectory(path):
    urls.append({
        'loc' : string.lstrip(url, '/').replace('index.html', ''),
        'lastmod' : dtnow,
        'changefreq' : 'daily'
    })



f = codecs.open(os.path.join(path, 'sitemap.xml'), 'w', 'utf8')
f.write(pystache.render(template, {
    'root': webroot,
    'urls': urls
}))
f.close()

template.xml

<?xml version="1.0" encoding="UTF-8"?>
<urlset
      xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
            http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">

{{#urls}}
<url>
  <loc>{{ root }}{{ loc }}</loc>
  <lastmod>{{ lastmod }}</lastmod>
  <changefreq>{{ changefreq }}</changefreq>
</url>
{{/urls}}
</urlset>