Compiling the regular expression works great, I cant find the tutorial Mr. Gauld is referring to!! I searched python.org and alan-g.me.uk. Does anyone have a link?
On Mon, May 4, 2009 at 1:46 PM, Martin Walsh <mwa...@mwalsh.org> wrote: > Nick Burgess wrote: >> So far the script works fine, it avoids printing the lines i want and >> I can add new domain names as needed. It looks like this: >> >> #!/usr/bin/python >> import re >> >> outFile = open('outFile.dat', 'w') >> log = file("log.dat", 'r').read().split('Source') # Set the line delimiter >> for line in log: >> if not re.search(r'notneeded.com|notneeded1.com',line): >> outFile.write(line) > > There is a subtle problem here -- the '.' means match any single > character. I suppose it's unlikely to bite you, but it could -- for > example, a line containing a domain named notneeded12com.net would > match. You should probably escape the dot, and while you're at it > compile the regular expression. > > # untested > pattern = re.compile(r'notneeded\.com|notneeded1\.com') > for line in log: > if not pattern.search(line): > outFile.write(line) > > HTH, > Marty > > _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor