On Sep 29, 9:08 am, Gary Herron <gher...@islandtraining.com> wrote: > Sandy wrote: > > Hi all, > > A simple and silly if-else question. > > I saw some code that has the following structure. My question is why > > else is used there though removing else > > has the same result. More important, is it not syntactically wrong :-( > > > for i in xrange(8): > > if i < 4: > > print i > > else: > > print i > > > Cheers, > > dksr > > Seehttp://docs.python.org/reference/compound_stmts.html#the-for-statement > for an explanation of the "for" statement, and the meaning of it's > "else" suite. > > In this particular instance, the "else" adds nothing, but there are > instances where it does provide a useful functionality.
Hmm, I wonder if Python should emit a warning if an else is used on a for block with no break inside. I don't think the else can be invoked in any other way. As a bonus it could catch some cases where people mistakenly use it thinking it will execute when there are no iterations. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
