[Python] Boxing bytes looses type information

[HLWeil]

[Python] Boxing bytes looses type information

[ncave]

Same thing with JS/TS, there is limited RTTI cause the base type for all integer types is either number (i.e. float64) or bigint.

[dbrattli]

@HLWeil @Freymaurer, this is a bit tricky since Python really just have int so we need to do some tricks if we want to make this work. Another possibility is that we (Fable) take a dependency on NumPy to have sized and signed integers. Would NumPy as a dependency be acceptable for your application?

[dbrattli]

Yes, with Python I'm considering removing the int subclasses which would make all integers transpile to variable size int and instead use numpy if more specific integers and reflection handling is needed. That should fix most array problems as well, i.e use list for arrays or numpy arrays if available.