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Everyone's asking, 'Who's Json?', but nobody's asking, 'How's Json?' (thelemmy.club)
submitted 3 weeks ago by to c/programmer_humor@programming.dev
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[–] 5 points 3 weeks ago (1 child)

I would have accepted this answer.

I was hoping for json.dumps, but that'll work.

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  • [–] 1 point 3 weeks ago (1 child)

    I think json.dumps would not work if there is a datetime in the dict, right?

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  • [–] 1 point 3 weeks ago (1 child)

    Yeah there's other edge cases too, like Decimal, but as long as you have those things imported when you send it through dumps it should work.

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  • [–] 1 point 3 weeks ago (1 child)

    Just tried it in an ipython shell

    import datetime
import json

json.dumps({"a": datetime.datetime(1970,1,1)})

    And I got the TypeError: datetime not JSON serializable though.

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  • [–] 1 point 3 weeks ago*

    If you don't care you can pass in default=str (I think) but if you do care you can define a function for what the string representation should look like and pass that in, but that's a happy path case to be honest. I usually only run into this problem when something is logging unknown data (otherwise I prefer to model data like this so the IDE is happy) so I pass in the default=str just to get it functional.

    Duck typing usually works but, datetime man, datetime is the warp from Warhammer 40K, it will drive you mad.

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