Aw: Re: Re: Re: Any possible type alias that can also set a default value for a function arg?
Karsten Hilbert
Karsten.Hilbert at gmx.net
Thu Oct 19 04:34:34 EDT 2023
> > As per my recent foray into abusing existence-checking for Singleton assurance
> > along such lines as
> >
> > >>> try: self.initialized
> > >>> except AttributeError: print('first instantiation'); self.initialized = True
> >
> > and then changing that to
> >
> > >>> try: self.initialized:bool
>
> But that's not equivalent code.
I learned as much (RHS vs LHS).
But it did not _intuitively_ resonate with the sentiment
"type annotation does not change the running of code".
Karsten
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