[zimpenfish]

> if you’re already inside some Python script [...]

You're not going to shell out to `jo` and that's fine - it's not what `jo` was created for; it's explicitly a shell command to help you work around the annoyance of getting quoting right when constructing JSON from the command line (which I've had to do a lot and I'm pretty sure many people have to.)

> If you are in a shell session [and want to create JSON] ... that’s not a realistic assumption.

Of course it is. People create JSON in shell scripts all the time! That's why things like `jq` exist - because this is what people do!