Pandas like features

[jmh530]

On Thursday, 5 November 2020 at 20:22:45 UTC, data pulverizer 
wrote:
> [snip]
>
> 2. Next I would use memory mapped i/o for storage. Usually 
> memory mapped files are only accessible by one thread for 
> security but I believe that this can be changed. For security 
> you could use cryptographic keys to access the files between 
> threads. So that memory written in one language can be access 
> by another.
>
> [snip]

One thread only? Sounds like GIL...