[Python-Dev] PEP 376 proposed changes for basic plugins support (original) (raw)

Éric Araujo merwok at netwok.org
Thu Aug 5 18:06:59 CEST 2010

Hello

Le 03/08/2010 13:09, Michael Foord a écrit :

On 03/08/2010 09:28, M.-A. Lemburg wrote:

P.J. Eby wrote:

At 10:37 PM 8/2/2010 +0200, M.-A. Lemburg wrote:

[idea about sqlite3 db for caching] [distros won’t like it, the filesystem is the db] [the db is a cache, it does not replace the files] [advantages of sqlite3 db] Sounds good as an "optional extra" (i.e. it should be safe to completely delete the cache file and still have everything work) to me. If the API for using the feature is worked out well first this could be done as a behind the scenes optimisation...

FYI, the current implementation in the distutils2-augmented pkgutil uses a cache (a function call memo) for functions that e.g. iterate over dist-info directories (and optionally egg-info directories too) or get a Distribution object representing an installed project. Tools that modify the state of the installation can call a function to clear this cache.

A sqlite db would certainly speed things up; it could replace the existing caching in distutils2 or be left to other tools.

Regards

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