Hrvoje Niksic wrote: > Dr Mephesto <[EMAIL PROTECTED]> writes: > >> I would like to create a pretty big list of lists; a list 3,000,000 >> long, each entry containing 5 empty lists. My application will >> append data each of the 5 sublists, so they will be of varying >> lengths (so no arrays!). >> >> Does anyone know the most efficient way to do this? I have tried: >> >> list = [[[],[],[],[],[]] for _ in xrange(3000000)]
> If you're building large data structures and don't need to reclaim > cyclical references, I suggest turning GC off, at least during > construction. This is good advice, but another question is whether you really want such a list. You may well be better off with a database of some kind - they're designed for manipulating large amounts of data. Tim Delaney -- http://mail.python.org/mailman/listinfo/python-list
