Truly random numbers
John La Rooy
nospampls.jlr at doctor.com
Tue Feb 11 21:08:56 EST 2003
On Wed, 12 Feb 2003 12:57:17 +1100
John La Rooy <nospampls.jlr at doctor.com> wrote:
>
> ...or use select/poll
>
>
> import os,select
>
> number_of_groups=10000
> length_of_group=4
>
> dev_random=os.open("/dev/random",os.O_RDONLY)
> P=select.poll()
> P.register(dev_random,select.POLLIN)
>
> groups=[]
>
> while len(groups) < number_of_groups:
> group=""
> while len(group) < length_of_group:
> if P.poll(0.1):
> group+="%2.2X"%ord(os.read(dev_random,1))
> groups.append(group)
> print groups
>
>
or more simply (not using os.open() and os.read())
import select
number_of_groups=10000
length_of_group=4
dev_random=open("/dev/random")
P=select.poll()
P.register(dev_random.fileno(),select.POLLIN)
groups=[]
while len(groups) < number_of_groups:
group=""
while len(group) < length_of_group:
if P.poll(0.1):
group+="%2.2X"%ord(dev_random.read(1))
groups.append(group)
print groups
John
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