[Python-ideas] Modules as global namespaces rather than dicts

Nick Coghlan ncoghlan at gmail.com
Wed Nov 15 01:44:34 EST 2017

On 15 November 2017 at 06:34, Neil Schemenauer <nas-python-ideas at arctrix.com
> wrote:

> So, what is the purpose of all this trouble?
> - I believe quite a lot of Python internals can be simpler.  For
>   example, importlib is complicated by the fact that a dict is
>   passed around when most of the logic would prefer to have the
>   module.  Grubbing in sys.modules to lookup the module object is
>   ugly.  The expression "exec(code, module)" is elegant to me.

I like the idea in principle, but highlighting a particular backwards
compatibility pain point: one of the complications in importlib is that we
promise to keep the "sys.modules[__name__] = some_other_object" idiom
working. That means the need to do that check exists regardless of whether
importlib is passing the module itself around, or the module's dict.


Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
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