[SaxonRobber]

It also requires a library outside of the standard.

[rfoo]

Java and Perl does not have json in builtin libs, does it make Java/Perl less useful or less expressive than Python?

[steveklabnik]

To be clear, my solution also included two libraries outside of the standard library. That’s idiomatic for Rust.

[jcelerier]

does that matter ? Python does not even have an ISO standard

[SaxonRobber]

I think it does, I should not require an external dependency for JSON. Having standard JSON support is far far more useful than another micro optimizations.

[jcelerier]

fifteen years ago that would have been XML and twenty-five years ago SGML and in ten years it'll be TOML or protobuf or something so...

[SaxonRobber]

Eventual deprecation is not a valid justification for making current technology less useful.

Now I would buy your argument if C++ were as conservative as C, but it clearly isn’t. It keeps trying to push itself as a modern general purpose language, while ignoring what it actually takes to be useful as one.