file.py

#!/usr/bin/env python

from bs4 import BeautifulSoup
import fnmatch
import os
import re

def Page(object):
    def __init__(self, filename):
        self.filename = filename
        self.soup = None
        self.changed = False

    
    def _soup(self):
        if self.soup:
            return soup
        else:
            f = open(self.filename, 'r')
            self.soup = BeautifulSoup(f.read())
            return self.soup

    def remove_script_tag_containing(self, regex_str):
                for script in page.find_all('script'):
                    if bool( re.search(r'_trackPageview', script.get_text()) ):
                        print "Found match in %s" % script
                        script.decompose()
                        self.changed = True

    def save(self, force_save = False):
        if self.changed or force_save:
            f = open(self.filename, 'w')
            f.write(self.soup().get_text())
            f.close()


        

for root, dirnames, filenames in os.walk('.'):
      for filename in fnmatch.filter(filenames, '*.html'):
                page = Page(os.path.join(root, filename))
                #page.remove_script_tag_containing(r'_trackPageView')
                page.save(True)