[Python-Dev] Planning on removing cache invalidation for file finders

[Brett Cannon]

On Sat, Mar 2, 2013 at 8:16 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:

> On Sat, 2 Mar 2013 11:16:28 -0500
> Brett Cannon <brett at python.org> wrote:
> > > In addition, it may be appropriate for importlib to offer a
> > > "write_module" method that accepts (module name, target path,
> > > contents). This would:
> > >
> > > 1. Allow in-process caches to be invalidated implicitly and
> > > selectively when new modules are created
> >
> > I don't think that's necessary. If people don't want to blindly clear all
> > caches for a file they can write the file, search the keys in
> > sys.path_importer_cache for the longest prefix for the newly created
> file,
> > and then call the invalidate_cache() method on that explicit finder.
>
> That's too complicated for non-import experts IMHO.
>

Which is why they can just call importlib.import_module().
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