[Python-ideas] re-organizing the sys module

[Antoine Pitrou]

Le 13/03/2014 08:43, Eric Snow a écrit :
> At the moment I'm not proposing any big changes to sys nor any changes
> at all to its API.  That can come later. <wink>  Instead, this
> proposal is about setting the stage for better flexibility in making
> changes to sys when the need arises.  Consequently I propose just
> 2.5000000000000001 relatively simple changes:
>
> 1. the existing sys module be renamed to _sys (and the stdlib be
> changed accordingly where appropriate);
> 2. a pure Python sys module be added to the stdlib that wraps the existing API;

I'm not sure what that brings until the need arises.
However, making it a pure Python sys module means it won't be 
immediately available at startup like sys currently is (i.e. it's a 
built-in module). I don't know if there are any scenarios where it may 
matter.

> 2.5. the new module should use the replace-itself-in-sys.modules
> technique to provide a module subclass that supports descriptors.

I don't think any module should be specific in that regard. Special 
cases generally make the language more complicated to learn. Also, you 
haven't explained the rationale.

Regards

Antoine.