MILLER Eva <evam <at> multcolib.org> writes: So far, I've written the following python script to accomplish what I'm trying to do: # Finds ISBNs in a link and creates a new link to search a library catalog import re,string, urllib,urllib2 def librarylookup (): href = open("booktest.txt") line = href.read() isbn = re.search ('(is[bs]n=)([0-9]*)',line) lookup="<a href=\"http://ipac.multcolib.org/ipac20/ipac.jsp?index=ISBN&term=%s>Check the catalog</a>" % (isbn) print lookup librarylookup() ------------------------------- My problem is the booktest.txt part. I'm just doing that to test the rest of the script, which seems to work. What I actually need the script to do is read the input from an RSS feed on pages like this one: http://demo.plinkit.org/interestsideas/goodreads/sinList?synmap=HardcoverFic... I want the script to insert a link to a public library catalog that searches for this item. So, it has to read the RSS feed and leave behind the link. It would have to be invoked for every ISBN, I guess. I'm using CMFSin to get the feeds. I know I have to create this as an external method then call it. Kinda unsure how to do that part, too. Someone out there surely knows more than I do. Actually, almost everyone out there knows more than I do. Help the poor librarian! Eva