Python treats integers as objects, but as I mentioned that I do care about the value only, and not its object methods. I mean that it's not possible to share objects among application in different programming languages, but it's possible to share the scalar values among them. Strings, booleans, integeres, floats, null are types that most programming languages use. Arrays are also commonly used, but each programming language defines and uses it differently, so it's more problematic to treat it as scalar (for example python uses dictionaries while other langs uses regular arrays only).
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