On Thursday, July 23, 2020 at 3:30:48 PM UTC-7, Dave Morris wrote:
>
> I think this last example is related to trac #27536 
> <https://trac.sagemath.org/ticket/27536> (conversion of mathematical 
> constant such as pi to RDF leaks memory).  There is still a memory leak 
> (but smaller, I think) if pi^i is replaced with pi, but I don't see a 
> memory leak if pi^i is replaced with RDF.pi().  I also don't see a leak 
> with RDF.pi()^i, but I quickly get a RecursionError ("maximum recursion 
> depth exceeded").  I know almost nothing about memory leaks, but I just 
> wanted to point out that I noticed some related issues that might possibly 
> provide an explanation (and certainly seem to be relevant to a complete 
> solution).
>
> That could well play a role too, but there are actually objects leaking on 
the python heap, which is not happening with  trac #27536. 
<https://trac.sagemath.org/ticket/27536> 

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