Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From: Ethan Furman <ethan@stoneleaf.us>
Newsgroups: comp.lang.python
Subject: Re: Clean Singleton Docstrings
Date: Fri, 08 Jul 2016 13:00:01 -0700
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On 07/08/2016 09:57 AM, Rob Gaddi wrote:
> Michael Selik wrote:
>> On Jul 7, 2016, at 7:46 PM, Rob Gaddi <rgaddi@highlandtechnology.invalid> wrote:

>>> I've got a package that contains a global ensmartened dict that allows
>>> all the various parts of my program to share state.
>>
>> The simplest solution would be to use a module as your singleton. For example, "registry.py" would work. Pydoc will show its docstring, and it will have all the features you had been using, with the added benefit of not needing to enforce its singletonness.
>>
>
> REALLY needs to be an object, preferably dict-like.  For instance, one
> of the things it does is provide a .getKeyChanged(self, key) method that
> returns a keyChanged QSignal so that various elements of the program can
> all register for notifications triggered by __setitem__.  That way, when
> Registry['dut'] gets updated, all of the various GUI elements reliant on
> information about the dut all dump their old data and find out about the
> newly connected device.

Get the best of both worlds -- insert your Registry object into 
sys.modules.  It is then importable from anywhere, yet still has all its 
native object power.

Something like this should do the trick:

# untested
import sys
sys.modules['%s.registry' % __name__] = _Register()

and then elsewhere:

from blah import registery
registry.whatever()

--
~Ethan~