json-fix 0.1.0

allow custom class json behavior on builtin json object

What is this?

A patch to the buildit python json object that allows classes to specify how they should be serialized.

Why?

Because sometimes external code uses something like

import json
json.dumps(list_containing_your_object)

And it simply throws an error no matter how you customize your object

How do I use this?

pip install json-fix

from json_fix import fix_it; fix_it() # only needs to be done once per runtime, NOT per-file

# same file, or different file
class YOUR_CLASS:
    def __json__(self):
        # YOUR CUSTOM CODE HERE
        #    you probably just want to do:
        #        return self.__dict__
        return "a built-in object that is natually json-able"

If you want control over classes you didn't define yourself, use the converter table

from json_fix import fix_it; fix_it() # only needs to be done once per runtime, NOT per-file
import json
import pandas as pd

SomeClassYouDidntDefine = pd.DataFrame

# the key is a lambda checker, the value is the converter if the check==True
class_checker = lambda obj: isinstance(obj, SomeClassYouDidntDefine)
# the lambda here (the converter) needs to return a string
json.override_table[class_checker] = lambda obj_of_that_class: json.loads(obj_of_that_class.to_json())

json.dumps([ 1, 2, SomeClassYouDidntDefine() ], indent=2)