Gabriele Brambilla wrote: > Hi, > > I have this script
> points = 33750000000 > for iw in range(points): > print iw > > > But when I run it it is killed in the for cycle, it doesn't print any > number: > > [gabriele:~/Desktop/GITcode] gbrambil% python EknotFromKostas.py > im here > ../NOBACKUP/heavi3/EX_104189.dat > pastopens > Killed > > does it mean that my number of points is too high? In Python 2 range(points) creates a list. To store only the object references in the list (the actual int object takes much more memory) you need >>> 33750000000 * 8 270000000000 Bytes or >>> _ / 2**30 251.4570951461792 i. e. over 250 GiB of RAM on a 64 bit system. While you can replace range() with xrange() in Python 2 or switch to Python 3 where range() is an object >>> range(33750000000) range(0, 33750000000) you should start with much smaller numbers and then extrapolate the expected runtime and memory consumption of your script once it does anything useful. _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
