[Python-Dev] PEP 365 (Adding the pkg_resources module)

Guido van Rossum guido at python.org
Mon Mar 17 18:17:49 CET 2008

On Mon, Mar 17, 2008 at 11:55 AM, Stefan Behnel <stefan_ml at behnel.de> wrote:
> Guido van Rossum wrote:
>  > It should be able to download a Python-only module or package and
>  > install it into site-packages (or perhaps elsewhere if so directed via
>  > another optional command line flag). It should support zip, tar and
>  > tar.gz/tgz files (and perhaps tar.bz2). It should simply unpack the
>  > zip/tar file using the zip or tar modules, and extract the
>  > package/module into site-packages in such a way that it can be
>  > imported directly without messing with sys.path. It should not mess
>  > with .pth files, setup.py scripts, or eggs.
>  Do you mean "existing eggs" or does that include the (potential .egg) package
>  that is being installed?

The latter.

> If I understood correctly, this bootstrap module
>  currently supports installing eggs (although I'm not sure how they are
>  supposed to work without the current way of keeping a .pth file).

My proposal is that the boostrap module only be able to install
non-egg archives.

>  Is it *wanted* that eggs are being supported by core Python?

No. There will be no egg support in the standard library.

--Guido van Rossum (home page: http://www.python.org/~guido/)

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