Re: random number generator thread safety

2005-11-08 Thread Mike Brown
Raymond Hettinger wrote: > Mike Brown wrote: > > I have questions about thread safety in the 'random' module. > > > > When using the random.Random class (be it Mersenne Twister or Wichmann-Hill > > based), is it sufficiently thread-safe (preserving entropy and guarding > > against attack) to just h

Re: random number generator thread safety

2005-11-08 Thread Raymond Hettinger
> > Thread-safety has nothing to do with preserving entropy or guarding > > against attack. All of the entropy in an MT sequence is contained in > > the seed (upto 624 bytes) and that entropy is preserved through all > > subsequent calls. > > I think the concern is that there can be a thread switc

Re: random number generator thread safety

2005-11-08 Thread Paul Rubin
"Raymond Hettinger" <[EMAIL PROTECTED]> writes: > Thread-safety has nothing to do with preserving entropy or guarding > against attack. All of the entropy in an MT sequence is contained in > the seed (upto 624 bytes) and that entropy is preserved through all > subsequent calls. I think the concer

Re: random number generator thread safety

2005-11-08 Thread Raymond Hettinger
Mike Brown wrote: > I have questions about thread safety in the 'random' module. > > When using the random.Random class (be it Mersenne Twister or Wichmann-Hill > based), is it sufficiently thread-safe (preserving entropy and guarding > against attack) to just have each thread work with its own ran

random number generator thread safety

2005-11-08 Thread Mike Brown
I have questions about thread safety in the 'random' module. When using the random.Random class (be it Mersenne Twister or Wichmann-Hill based), is it sufficiently thread-safe (preserving entropy and guarding against attack) to just have each thread work with its own random.Random instance? Or