[Python-Dev] Re: Re: Caching objects in memory
tjreedy at udel.edu
Tue Apr 26 04:33:23 CEST 2005
"Terry Reedy" <tjreedy at udel.edu> wrote in message
news:d4jm79$uji$1 at sea.gmane.org...
> But for *immutable* objects (like numbers, strings and tuples) the
> implementation is free to use caching. In practice, I believe ints
> between -5 and 100 are cached, and 1-character strings are often
> cached (but not always).
> Hope this helps! I would think this is in the docs somewhere but
> probably not in a place where one would ever think to look...
To be clearer, the above quotes what Guido wrote in the post of his that I
am responding to. Only the below is my response.
> I am sure that the fact that immutables *may* be cached is in the ref
> manual, but I have been under the impression that the private, *mutable*
> specifics for CPython are intentionally omitted so that people will not
> think of them as either fixed or as part of the language/library.
> I have previously suggested that there be a separate doc for CPython
> implementation details like this that some people want but which are not
> part of the language or library definition.
Terry J. Reedy
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