[Python-ideas] dict.hash - optimized per module

[Terry Reedy]

On 10/17/2010 3:27 AM, Jan Koprowski wrote:
> Hi,
>
>    My name is Jan and this is my first post on this group. So hello :)
>    I'm very sorry if my idea is so naive as to be ridiculous but I
> believe it is worth to ask.

Worth asking but not worth doing (or, in a sense, already done for 
function local namespaces).

As Antoine said, strings have their hash computed just once. Recomputing 
a namespace-depending hash for each lookup would take far longer than 
the occational collision.

For function local names, names are assigned a index at compile time so 
that runtime lookup is a super-quick index operation. If you want, call 
it perfect hashing with hashes computed once at compile time ;-).

-- 
Terry Jan Reedy