kj a écrit : > > As I said, this is considered an optimization, at least in Perl, > because it lets the interpreter allocate all the required memory > in one fell swoop, instead of having to reallocate it repeatedly > as the array grows.
IIRC, CPython has it's own way to optimize list growth. > (Of course, like with all optimizations, > whether it's worth the bother is another question.) My very humble opinion is that unless you spot a bottleneck (that is, you have real performance issues AND the profiler identified list growth as the culprit), the answer is a clear and obvious NO. > Another situation where one may want to do this is if one needs to > initialize a non-sparse array in a non-sequential order, Then use a dict. -- http://mail.python.org/mailman/listinfo/python-list
