[Python-Dev] PEP 382: Namespace Packages
pje at telecommunity.com
Tue Apr 7 16:05:45 CEST 2009
At 02:30 PM 4/7/2009 +0200, M.-A. Lemburg wrote:
> >> Wouldn't it be better to stick with a simpler approach and look for
> >> "__pkg__.py" files to detect namespace packages using that O(1) check ?
> > Again - this wouldn't be O(1). More importantly, it breaks system
> > packages, which now again have to deal with the conflicting file names
> > if they want to install all portions into a single location.
>True, but since that means changing the package infrastructure, I think
>it's fair to ask distributors who want to use that approach to also take
>care of looking into the __pkg__.py files and merging them if
>Most of the time the __pkg__.py files will be empty, so that's not
>really much to ask for.
This means your proposal actually doesn't add any benefit over the
status quo, where you can have an __init__.py that does nothing but
declare the package a namespace. We already have that now, and it
doesn't need a new filename. Why would we expect OS vendors to start
supporting it, just because we name it __pkg__.py instead of __init__.py?
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