Rename videos from SoK with Title of Talk

sok-renamer.py

import sys
from lxml import html
import os
import os.path
import re

run = True

buf = open(sys.argv[1]).read()
doc = html.fromstring(buf[:])
for e in doc.xpath('//a[@id]'):
    title = e.text
    inname = e.attrib['href']
    fname, ext = os.path.splitext(os.path.basename(inname))
    newname = re.sub(r'[^A-Za-z0-9_-]+', '_', fname+'-'+title).strip('_')[:200] + ext
    #newname = os.path.join(os.path.dirname(inname), newname).encode('utf-8')
    newname = newname.encode('utf-8')
    sys.stderr.write('{} -> {}\n'.format(inname, newname))
    try:
        buf = buf.replace(inname, newname)
    except:
        print(repr(inname))
        print(repr(newname))
        raise
    try:
        if run:
            os.rename(inname, newname)
    except Exception as ex:
        sys.stderr.write(str(ex)+'\n')
if run:
    open(sys.argv[1], 'w').write(buf)