type annotation vs working code

[Karsten Hilbert]

Am Wed, Oct 04, 2023 at 05:25:04PM +1300 schrieb dn via Python-list:

> The first question when dealing with the Singleton Pattern is what to do when more than
> one instantiation is attempted:
>
> - silently return the first instance

This, in my case.

> and so, returning to the matter of 'readability':
>
> - the name "Borg" de-railed comprehension
>
> - _instances:dict = {} implied the tracking of more than one

Child classes, yes, each being a Singleton.

> or a Singleton() class defined, which is then sub-classed, ie
>
>     class Something( Singleton ):

Could have been but the legacy codebase came with Borg ...

> - from there, plenty of 'templates' exist for Singletons,

...  which was taken from the Web ages ago.

> - this article (https://python-patterns.guide/gang-of-four/singleton/)

Reading.

Karsten
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