This is a simple python script to scrape comments from a web page.

scrapecomments.py

#!/usr/bin/env python

import argparse
import urllib
import urlparse
from HTMLParser import HTMLParser

arg_parser = argparse.ArgumentParser()
arg_parser.add_argument('url')
args = arg_parser.parse_args()

class MyParser(HTMLParser):
    def handle_comment(self, data):
		print 'Line ' + str(self.getpos()[0]) + ' ' + data

html_parser = MyParser()

try:
    content = urllib.urlopen(args.url).read()
    html_parser.feed(content)

except IOError:
	print 'Please ensure that the URL is formatted properly'