[Python-Dev] hash randomization in 3.3

[Terry Reedy]

On 2/22/2012 1:57 AM, Nick Coghlan wrote:

>> In the tracker, someone proposed that the option is necessary to synchronize
>> the seed across processes in a cluster. I'm sure people will use it for that
>> if they can.
>
> Yeah, that use case sounds reasonable, too. Another example is that,
> even within a machine, if two processes are using shared memory rather
> than serialised IPC, synchronising the hashes may be necessary. The
> key point is that there *are* valid use cases for forcing a particular
> seed, so we shouldn't take that ability away.

When we document the option to set the seed, we could mention that 
synchronization of processes that share data is the main intended use.

-- 
Terry Jan Reedy