[Import-SIG] PEP 402 implementation
brett at python.org
Wed Jul 20 22:08:42 CEST 2011
On Wed, Jul 20, 2011 at 13:02, Eric Snow <ericsnowcurrently at gmail.com>wrote:
> Last night I had a chance to get started on an implementation for the
> PEP. I'm taking the importlib route. Before I do much more I wanted
> to check on a couple of things with this group.
Obviously feel free to ask me questions (publicly or privately) if anything
in the importlib code is an issue for you (I know its structure for
bootstrapping reasons is a bit odd).
> First of all, I don't want to go to much effort here if others are
> already focused on the implementation, particularly since I'm sure all
> of you would do a better job than I would. I already feel like I have
> butt in on the work Barry, Eric, and crew were getting started. <wink>
> If someone is already going to take care of the implementation please
> let me know.
I really doubt anyone has jumped into this as much as you have, Eric. =) You
can also always do it on bitbucket or somewhere so that others can
collaborate. I believe there is even a cpython mirror there so that should
make it easy to fork and pull in updates.
> In case you haven't noticed, Python is my first foray into an
> open-source project, and I've only been involved since the pycon
> sprints (been using Python exclusively for 5 years though). So, I am
> still feeling out the mechanics of how people cooperate on this sort
> of stuff.
> Secondly, regardless of importlib or import.c or whatever, the sys
> module will need to have "virtual_packages" added right? I stuck that
> code in import.c next to where sys.meta_path and others get
> initialized . Is that the right place to do it? Should it go in
> sysmodule.c instead?
I can understand populating those properties in import.c, but it is probably
better to initialize the empty data structures in sysmodule.c so that the
code to get the module in a basic state is centralized. but if sys.meta_path
and friends are elsewhere then you can start there and have a separate patch
(file a bug now, though) to possibly relocate the code later.
>  http://hg.python.org/cpython/file/default/Python/import.c#l204
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