Stripping scripts from HTML with regular expressions

Reedick, Andrew jr9445 at ATT.COM
Wed Apr 9 22:26:44 CEST 2008



> -----Original Message-----
> From: python-list-bounces+jr9445=att.com at python.org [mailto:python-
> list-bounces+jr9445=att.com at python.org] On Behalf Of Michel Bouwmans
> Sent: Wednesday, April 09, 2008 3:38 PM
> To: python-list at python.org
> Subject: Stripping scripts from HTML with regular expressions
> 
> Hey everyone,
> 
> I'm trying to strip all script-blocks from a HTML-file using regex.
> 
> I tried the following in Python:
> 
> testfile = open('testfile')
> testhtml = testfile.read()
> regex = re.compile('<script\b[^>]*>(.*?)</script>', re.DOTALL)


Aha! \b is being interpolated as a backspace character:
  \b ASCII Backspace (BS)

Always use a raw string with regexes:
	regex = re.compile(r'<script\b[^>]*>(.*?)</script>', re.DOTALL)

Your regex should now work.



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