[Python-Dev] making the import machinery explicit

[Terry Reedy]

On 4/17/2012 2:01 PM, Brett Cannon wrote:
> Isn't it clearer to say
> ``sys.path_importer_cache[path] is None`` than
> ``isinstance(sys.path_importer_cache[path], imp.NullImporter)``?

Yes. Great work. Thanks for helping with the Idle breakage.

-- 
Terry Jan Reedy