On Tuesday, 25 December 2018 03:55:13 UTC-7, vdelecroix wrote:
>
> Since there is only one process, there should be a single instance of 
> the R object in Sage. Isn't that a trivial fix? 
>
> Disallowing multiple R instances might be a misfeature. But it is not 
> dramatic (to my mind and to the OP). 
>
> Vincent 
>

It does not affect me personally at all, my use of R is limited to making 
it work in SageMathCell. But if there is only one instance, then I think 
R() should always return that single instance rather than a new wrapper 
each time and perhaps it should be deprecated and removed from the global 
namespace so that interaction goes through the precreated r object only. It 
seems to me that the main use for R() vs. r before would be to create a new 
instance which does not work anymore. (Although I used it to pickup a new 
working directory and alter graphic initialization commands.)

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