Re: Help with Singleton SafeConfigParser

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Date	Sat, 8 Dec 2012 09:48:04 -0800 (PST)
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On Saturday, December 8, 2012 9:40:07 AM UTC-8, Peter Otten wrote:
> 
> 
> 
> Two underscores trigger name mangling only in a class, not in a module. 
> 
> Don't try to hide the Options instance:
> 
> 
> 
> # module config.py
> 
> import ConfigParser
> 
> 
> 
> class Options(ConfigParser.SafeConfigParser):
> 
>      ... # as above
> 
> 
> 
> options = Options()
> 
> 
> 
> Then use it elsewhere:
> 
> from config import options
> 
> options.set("mysection", "myoption", "myvalue")
> 
> 
> 
> All but the first import will find the module in the cache (sys.modules) and 
> 
> therefore the same Options instance will be used. Voilà your no-nonsense 
> 
> singleton.


Ah. I was over-thinking again. I couldn't find an example of this anywhere, and when I saw the tirades against Singletons they mentioned "use modules" but, well, I haven't had my morning coffee yet. I shouldn't even be trying this sort of thing until then.

Thank you for the simple answer.

Josh

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Thread

Help with Singleton SafeConfigParser Josh English <Joshua.R.English@gmail.com> - 2012-12-08 09:11 -0800
  Re: Help with Singleton SafeConfigParser Peter Otten <__peter__@web.de> - 2012-12-08 18:40 +0100
    Re: Help with Singleton SafeConfigParser Josh English <Joshua.R.English@gmail.com> - 2012-12-08 09:48 -0800
      Re: Help with Singleton SafeConfigParser Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-12-08 20:23 +0000
    Re: Help with Singleton SafeConfigParser Josh English <Joshua.R.English@gmail.com> - 2012-12-08 09:48 -0800

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