On Fri, 04 Feb 2005 14:43:30 -0500, rbt <[EMAIL PROTECTED]> wrote: > Steve Holden wrote: > > rbt wrote: > > > >> Either I'm crazy and I'm missing the obvious here or there is > >> something wrong with this code. Element 5 of this list says it doesn't > >> contain the string 255, when that's *ALL* it contains... why would it > >> think that??? > >> > >> import time > >> > >> ips = ['255.255.255.255', '128.173.120.79', '198.82.247.98', > >> '127.0.0.1', '255.0.0.0', '255', '128.173.255.34'] > >> > >> for ip in ips: > >> if '255' in ip: > >> try: > >> print "Removing", ip > >> ips.remove(ip) > >> except Exception, e: > >> print e > >> > >> print ips > >> time.sleep(5) > >> > >> Someone tell me I'm going crazy ;) > > > > > > You are modifying the list as you iterate over it. Instead, iterate over > > a copy by using: > > > > for ip in ips[:]: > > ... > > > > regards > > Steve > > Very neat. That's a trick that everyone should know about. I vote it > goes in Dr. Dobbs newsletter.
Once you know it, it's neat, and I use it sometimes. However, it's a little too "magical" for my tastes; I'd rather be more explicit about what's going on. Peace Bill Mill bill.mill at gmail.com > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
