[Python-Dev] hash randomization in 3.3 (original) (raw)

Terry Reedy tjreedy at udel.edu
Wed Feb 22 22:05:21 CET 2012

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

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