Exporting from delicious.com (née del.icio.us) gives you crap HTML, this script reorganizes it into a JSON structure suitable for the high standards we have for datastructures here at the end of 2010.

delicious-backup-2-json.py

#!/usr/bin/env python
# get it from https://secure.delicious.com/settings/bookmarks/export
# use the default options
# file will be named with a datestamp, like: 'delicious-YYYYMMDD.htm'

import os, re, site, sys
from BeautifulSoup import BeautifulSoup
try:
    import json
except ImportError:
    import simplejson as json

argvee = ' '.join(argvee[1:])
bkmarks = argvee and argvee or '/Users/fish/Downloads/delicious-20101216.htm'
out = re.sub('htm$', 'json', bkmarks)

print "Reading Delicious links from crappy HTML in %s..." % bkmarks

if not os.path.exists(out):
    delicious = dict()
    
    with open(bkmarks, 'r+w') as bkf:
        icio = BeautifulSoup(bkf.read())
    
    for dt in icio.findAll('a'):
        atts = dict(dt.attrs)
        desc = dt.findNext('dd').string
        ln = atts.get('href')
        delicious[ln] = dict()
        delicious[ln]['href'] = ln
        delicious[ln]['add_date'] = atts.get('add_date')
        delicious[ln]['private'] = atts.get('private')
        delicious[ln]['tags'] = str(atts.get('tags')).split(',')
    
    with open(out, 'w+b') as jsonf:
        json.dump(delicious, jsonf, skipkeys=True, indent=4)
    
    print "Delicious links dumped to a reasonable JSON structure in %s" % out
    
else:
    print "File already exists"