Re: Using the Random Module.

[Michiel Overtoom]

You wrote...

>Is there a better way to do that besides doing this:

>>>>random.randint(00000000000000000, 99999999999999999)

09657398671238769

Maybe this?

random.randint(0, 9e16)
--
"The ability of the OSS process to collect and harness
the collective IQ of thousands of individuals across
the Internet is simply amazing." - Vinod Vallopillil
http://www.catb.org/~esr/halloween/halloween4.html

[WDC]

On Jul 11, 2:15*pm, Michiel Overtoom <[e-mail]:

You wrote...

Is there a better way to do that besides doing this:

>>>random.randint(00000000000000000, 99999999999999999)

09657398671238769

Maybe this?

* * * * random.randint(0, 9e16)

--
"The ability of the OSS process to collect and harness
the collective IQ of thousands of individuals across
the Internet is simply amazing." - Vinod Vallopillilhttp://www.catb.org/~esr/halloween/halloween4.html

That would work yes, but is there a random() function that would do
that without the attributes? Not trying to be lazy, I just want to
know if there is a built in way.

Thanks Michiel.

[castironpi]

On Jul 11, 1:29*pm, WDC <[e-mail]:

On Jul 11, 2:15*pm, Michiel Overtoom <[e-mail]:

You wrote...

>Is there a better way to do that besides doing this:

>>>>random.randint(00000000000000000, 99999999999999999)
>09657398671238769

Maybe this?

* * * * random.randint(0, 9e16)

--
"The ability of the OSS process to collect and harness
the collective IQ of thousands of individuals across
the Internet is simply amazing." - Vinod Vallopillilhttp://www.catb.org/~esr/halloween/halloween4.html

That would work yes, but is there a random() function that would do
that without the attributes? Not trying to be lazy, I just want to
know if there is a built in way.

Thanks Michiel.

You want a random integer. Is there a range you want it in?

Past a certain point, you'll exceed the granularity of the random
number generator, and some values in the range will never be generated.

[Dan Stromberg]

On Fri, 11 Jul 2008 12:27:32 -0700, castironpi wrote:

On Jul 11, 1:29Â*pm, WDC <[e-mail]:

>On Jul 11, 2:15Â*pm, Michiel Overtoom <[e-mail]:

You wrote...
Is there a better way to do that besides doing this:

>>>>random.randint(00000000000000000, 99999999999999999)
09657398671238769

Maybe this?

Â* Â* Â* Â* random.randint(0, 9e16)

--
"The ability of the OSS process to collect and harness the collective
IQ of thousands of individuals across the Internet is simply
amazing." - Vinod
Vallopillilhttp://www.catb.org/~esr/halloween/halloween4.html

That would work yes, but is there a random() function that would do
that without the attributes? Not trying to be lazy, I just want to know
if there is a built in way.

Thanks Michiel.

You want a random integer. Is there a range you want it in?

Past a certain point, you'll exceed the granularity of the random number
generator, and some values in the range will never be generated.

In which case you might grab random numbers, and'ing them with 0xffff or
0xffffffff or something at a time, and then smoosh them together with
shifts and or's, or multiplication and addition, to get the precision you
need.

[Steven D'Aprano]

On Fri, 11 Jul 2008 12:27:32 -0700, castironpi wrote:

You want a random integer. Is there a range you want it in?

Past a certain point, you'll exceed the granularity of the random number
generator, and some values in the range will never be generated.

You might want to produce an unbounded random integer, where *every*
integer has a chance to be returned:

def unbounded_randint():
i = 0
while True:
if random.random() < 0.5:
return i
i += 1

This returns 0 with probability 1/2, 1 with probability 1/4, 2 with
probability 1/8, etc. The probability distribution is centered close to
zero (the mode and median are both zero, and I'm too lazy to calculate
the mean) and it has an infinitely long tail.
--
Steven

[WDC]

On Jul 12, 10:06*am, Steven D'Aprano <st...@REMOVE-THIS-
cybersource.com.auwrote:

On Fri, 11 Jul 2008 12:27:32 -0700, castironpi wrote:

You want a random integer. *Is there a range you want it in?

Past a certain point, you'll exceed the granularity of the random number
generator, and some values in the range will never be generated.

You might want to produce an unbounded random integer, where *every*
integer has a chance to be returned:

def unbounded_randint():
* * i = 0
* * while True:
* * * * if random.random() < 0.5:
* * * * * * return i
* * * * i += 1

This returns 0 with probability 1/2, 1 with probability 1/4, 2 with
probability 1/8, etc. The probability distribution is centered close to
zero (the mode and median are both zero, and I'm too lazy to calculate
the mean) and it has an infinitely long tail.

--
Steven

Thanks Steven. I like how that bit works.

No range in particular. I was just wondering if there was a better way
than what I had been doing. Thanks for help.