Comments on: Python Singletons https://www.robg3d.com/2012/11/python-singletons/ Blog of Rob Galanakis (@robgalanakis) Wed, 21 Nov 2012 15:07:07 +0000 hourly 1 https://wordpress.org/?v=5.4.1 By: Jason https://www.robg3d.com/2012/11/python-singletons/#comment-50423 Wed, 21 Nov 2012 15:07:07 +0000 http://www.robg3d.com/?p=1021#comment-50423 I struggled with this a bit, coming from Java I suppose. I currently don’t have any cases multiple instances would cause harm, but they would be pointless. My answer is to design the class as I normally would then provide a module level instance as the default instance.

I do sometimes need a module level initialization function, if the class being used as a singleton requires some sort of configuration to be provided by the library user though.

]]> By: Brian https://www.robg3d.com/2012/11/python-singletons/#comment-50330 Tue, 20 Nov 2012 04:55:23 +0000 http://www.robg3d.com/?p=1021#comment-50330 I gotta agree with Kay.
I use modules when I want a singleton.
However, I like the tone of the article.
If you really have to implement a singleton solution, make it a simple implementation.
That goes for every language.
I’ve seen tons of terrible versions in C++.
But any design in python that requires a singleton that I’ve been presented with could be solved with the module as object pattern.

]]> By: Radomir https://www.robg3d.com/2012/11/python-singletons/#comment-50231 Mon, 19 Nov 2012 09:56:10 +0000 http://www.robg3d.com/?p=1021#comment-50231 @Kay Hayen
It would be strange to use a module as a singleton with many mutable members. And performance of module lookup is noticeable lower.

]]> By: Kay Hayen https://www.robg3d.com/2012/11/python-singletons/#comment-50218 Mon, 19 Nov 2012 08:48:45 +0000 http://www.robg3d.com/?p=1021#comment-50218 Hi

Python has support for singletons as good as it gets: modules

Before anything else that is what they are.

Yours Kay

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