"Sara Johnson" <[EMAIL PROTECTED]> wrote > Thanks Alan. That said, any idea what it means in this context? > > for key in skeys: > fracmiss=1.*numberMissing(z[key].values())/nsites #note > decimal multiplication, 1.* > outstring="%s has %4.1f%% missing" % (key,100*fracmiss) > if fracmiss >>0
None whatsoever, it looks like an error to me! That having been saisd their is another use for >> which is to append output to a file, as in: print 'hello world' >> myfile sends the string to myfile instead of to stdout. (Although I couldn't get this to work when I tried it!) Alan G. ----- Original Message ---- From: Alan Gauld <[EMAIL PROTECTED]> To: tutor@python.org Sent: Saturday, July 28, 2007 5:03:05 PM Subject: Re: [Tutor] comparing lists, __lt__ and __gt__ "Sara Johnson" <[EMAIL PROTECTED]> wrote > What if there is a '<<' or '>>'? > Does that just mean the same thing (maybe a little over emphasized.. > ;) The double chevron operator is for bit-shifting its not a camparison operation. So no operator override function exists. > I thought I saw this when I was learning boolean expressions, > but I don't recall. Possibly, because its often used to manipulate bitpatterns in conjunction with bitwise boolean comparisons (and/or/xor etc) HTH, -- Alan Gauld Author of the Learn to Program web site http://www.freenetpages.co.uk/hp/alan.gauld _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ____________________________________________________________________________________ Be a better Heartthrob. Get better relationship answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=list&sid=396545433 -------------------------------------------------------------------------------- > _______________________________________________ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor > _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor