On Tuesday 08 March 2005 15:55, Simon Brunning wrote: > Ah, but that's the clever bit; it *doesn't* store the whole list - > only the selected lines.
But that means that it'll only read several lines from the file, never do a shuffle of the whole file content... When you'd want to shuffle the file content, you'd have to set lines=1 and throw away repeating lines in subsequent runs, or you'd have to set lines higher, and deal with the resulting lines too in some way (throw away repeating ones... :-). Doesn't matter how, you'd have to store which lines you've already read (selected_lines). And in any case you'd need a line cache of 10^9 entries for this amount of data... That's just what I wanted to say... -- --- Heiko.
pgpTTdk42z5Yz.pgp
Description: PGP signature
-- http://mail.python.org/mailman/listinfo/python-list
