Why does it have to be bash+python? I'm finding myself using node.js scripts glued together by bash ones these days unless I'm working on a lot of data. Doing that means you can work with json natively.
`json.loads` in Python exists, and Python does the intuitive thing when you do `{"a": 1} == {"a": 1}`, at least for most purposes (you want the other option? `is` is right there!). Stuff like argparse is not the easiest thing to use but it's in the standard library and relatively easy to use as well.
Not going to outright say that node.js scripts are the worst thing ever (they're not), but out-of-the-box Python is totally underrated (except on MacOS where `urllib` fails with some opaque errors untill you run some random script to deal with certs)
Assuming <data> will be a key-value-object aka dict, it would be something like this:
import json
data = json.loads('<data>')
bar = None
if foo:=data.get('foo'):
bar = foo[0].bar
print(bar)
If you can't be sure to get a dict, another type-check would be necessary. If you read from a file or file-like-object (like sys.stdin), json.load should be used.
I love nodejs, it's my go-to language for server side stuff.
Even with that bias though, I have to admit that it's awful for typical command line script stuff.
Dealing with async and streams and stuff for parsing csv files is miserable (I just wrote some stuff to parse and process hundreds of gigs of files in node, and it wasn't fun).
Python is the right tool for that job IMHO.
Also, weirdly, maybe golang? I just came across this [1] and it has one of my eyebrows cocked.
Any not-designed-specifically-for-shell language will suck for shell, more or less. Ruby, python, node, whatever, they all have the same problem - you write stuff too much and care about stuff you shouldn't care while in shell.
You're probably right. I just wish there was an easier way to handle json on the command line that didn't turn into its own dsl. The golang scripting seems interesting, might be what motivates me to learn the language.
Not going to outright say that node.js scripts are the worst thing ever (they're not), but out-of-the-box Python is totally underrated (except on MacOS where `urllib` fails with some opaque errors untill you run some random script to deal with certs)