[Python-Dev] PEP 395: Module Aliasing

[Ron Adam]

On 03/04/2011 09:30 AM, Nick Coghlan wrote:

> Fixing dual imports of the main module
> --------------------------------------
>
> Two simple changes are proposed to fix this problem:
>
> 1. In ``runpy``, modify the implementation of the ``-m`` switch handling to
>    install the specified module in ``sys.modules`` under both its real name
>    and the name ``__main__``. (Currently it is only installed as the latter)
> 2. When directly executing a module, install it in ``sys.modules`` under
>    ``os.path.splitext(os.path.basename(__file__))[0]`` as well as under
>    ``__main__``.
>
> With the main module also stored under its "real" name, imports will pick it
> up from the ``sys.modules`` cache rather than reimporting it under a new name.


 > Fixing direct execution inside packages

+1 on both of these.

I don't see any major problems with these.  Any minor issues can be worked out.

I suggest separating these two items out into their own PEP, and doing them 
first.


Cheers,
    Ron