-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Nov 28, 2006, at 4:19 PM, Phillip J. Eby wrote:
> At 01:05 PM 11/28/2006 -0800, Guido van Rossum wrote: >> On 11/28/06, Barry Warsaw <[EMAIL PROTECTED]> wrote: >> > There's a related issue that may or may not be in scope for this >> > thread. For distros like Gentoo or Ubuntu that rely heavily on >> their >> > own system Python for the OS to work properly, I'm quite loathe to >> > install Cheeseshop packages into the system site-packages. >> >> I wonder if would help if we were to add a vendor-packages directory >> where distros can put their own selection of 3rd party stuff they >> depend on, to be searched before site-packages, and a command-line >> switch that ignores site-package but still searches vendor-package. >> (-S would almost do it but probably suppresses too much.) > > They could also use -S and then explicitly insert the vendor- > packages directory into sys.path at the beginning of their scripts. Possibly, but stuff like this can be a pain because your dependent app must build in the infrastructure itself to get the right paths set up for its scripts. An approach I've used in the past is to put a paths.py file in the bin directory and force every script to "import paths" before it imports anything it doesn't want to get from the stdlib (including overrides). paths.py is actually generated though because the user could specify an alternative Python with a configure switch. What I'm moving to now though is a sort of 'shell' or driver script which does that path setup once, then imports a module based on argv [0], sniffing out a main() and then calling that. The trick then of course is that you symlink all the top-level user scripts to this shell. Works fine if all you care about is *nix <wink>, but it does mean an application with lots of entry-level scripts has to build all this infrastructure itself. Maybe there's no better way of doing this and applications are best left to their own devices. But in the back of my mind, I keep thinking there should be a better way. ;) - -Barry -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Darwin) iQCVAwUBRWzJMXEjvBPtnXfVAQJHmAP/UhGUv1Wxt2AzGT08dM9/M0J4pahGnrF3 VwbrdRTF6Jt32iAKAJolrnTE+XlMaTGitYv+mu8v3SgJLWwe+aeJwpg8AdOn5jBL bSjBpE9UeqUSiMhaJmBbx/z5ISv4OioJLX+vzBv6u0yBTYv4uoYZPKoeMcCe6Afw 7e1gIL1WHL4= =scvm -----END PGP SIGNATURE----- _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
