Todd wrote: > Steve R. Hastings wrote: > > When you compile the expression > > > > for i in range(1000): > > pass > > > > does Python make an iterator for range(), and then generate the values > > on the fly? Or does Python actually allocate the list [0, 1, 2, ..., 999] > > and then step through it? > > I ran an experiment on this a while back. I thought it generated a > list. But the results turned out to be surprising. Take this with a > grain of salt. I'm not completely sure I did what I meant to do. But > it looks like however you do it, it works out about the same. > > http://www.signalsguru.net/articles/pyloops/pyloops.html
Didn't it occur to you to also check memory usage? I learned about xrange the hard way, when my range ate up all available memory. -- http://mail.python.org/mailman/listinfo/python-list
