Suggesting a new feature - "Inverse Generators"

Jordan Rastrick wrote:

[CHOP]

> Behold:> > # An Acceptor/Generator!!!> def combineIntoRecords():>        optionalline = None # We may not get given a value for this line>        accept firstline>        accept secondline>        if condition(secondline):>           accept optionalline>        accept lastline>        yield createRecord(firstline, secondline, optionalline,> lastline)

That's a nice example, but why not:

def combineIntoRecords(iterable):
     iterator = iter(iterable)
     optionalline = None
     firstline = iterator.next()
     secondline = iterator.next()
     if condition(secondline):
         optionalline = iterator.next()
     lastline = iterator.next()
     yield createRecord(firstline, secondline, optionalline, lastline)

???

-tim

> > def getData(lines):> 	return list(combineIntoRecords(filterJunk(lines)))> > So, alas, my beloved for loop was not saved after all.> > Fortunately, the dreaded While loop has been vanquished. In fact all> loopiness has disappeared. Along with any other semblance of a main> method.> > I think I like the finished result. I'll leave if for you to decide if> you like it too.>