[Python-Dev] Make str/bytes hash algorithm pluggable?
solipsis at pitrou.net
Thu Oct 3 20:50:33 CEST 2013
On Thu, 03 Oct 2013 20:42:28 +0200
Christian Heimes <christian at python.org> wrote:
> I haven't actually benchmarked how a faster hash algorithm
> affects the a real program, though ...
Chances are it doesn't. Only a "slow enough" hash algorithm might have
an impact, IMHO.
> On which level should Python support a pluggable hash algorithm?
> 1) Compile time option: The hash code is compiled into Python's core.
> Embedders have to recompile Python with different options to replace the
Not much point IMHO. Embedders can patch Python if they really need
> 2) Library option: A hash algorithm can be added and one avaible hash
> algorithm can be set before Py_Initialize() is called for the first
Too complicated. The library option should only offer the option to
replace the hash algorithm, not "add an available algorithm".
> 3) Startup options: Like 2) plus an additional environment variable and
> command line argument to select an algorithm. With a startup option
> users can select a different algorithm themselves.
-0.9. I think it's overkill.
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