Howdy! We've been using a rather lengthy external method to parse out pieces of some files on our site. It's been working well, but we just upgraded from Zope 2.3 to 2.4.1, and now I'm getting a "maximum recursion error" when the script runs. I've narrowed it down to a couple of regular expressions--I take them out, and the thing works fine. I suspect there's an error with my logic in the building of these re compiles, but I'm not sure. (And they've never failed before. Anyone see the error of my ways? (Attached is the function that's failing. It's being fed news story-length chunks of text with html code inside. The first re is meant to pull out the contents of the body tag, the second is meant to grab the contents of any non- <p> tag) Thanks! - Chris M. def getBody(raw): """ Generates the document source for the object by parsing out the body tag in the story and then stripping out all tags but the paragraph tags. """ r=re.compile('<body>(.*?)</body>', re.DOTALL|re.IGNORECASE) # this is a problem re r2=re.compile('<(?P<tag>[^p][a-zA-Z1-9]*)>.*?</(?P=tag)>', re.DOTALL|re.IGNORECASE) # and this is a problem r3=re.compile('<briefhead>', re.IGNORECASE|re.DOTALL) r4=re.compile('</briefhead>', re.IGNORECASE|re.DOTALL) r5=re.compile('!--briefhead--', re.IGNORECASE|re.DOTALL) r6=re.compile('!--briefheadend--', re.IGNORECASE|re.DOTALL) raw=r3.sub('!--briefhead--', raw) raw=r4.sub('!--briefheadend--', raw) i=r.search(raw) # this is the line choking things i=r2.sub(' ', i.group(1)) i=r5.sub('<span class="briefhead">', i) i=r6.sub('</span>', i) if i: return i else: return ''