How to print own class with jsonify in flask?

Question

I create class:

class My_class:
    def __init__(self, List):
        self.lst = List

    def __str__(self):
        return '[' + ', '.join(str(e) for e in self.lst) + ']'

But it doesn't work when I try to print jsonify with My_class This code doesn't work:

from flask import jsonify

def Print():
   return jsonify({"list": My_class([6, 9])})

I need to print My_class without ""

How to solve this?

Answer 1

Surround My_class([6, 9]) with str() as the class itself isn't JSON serializable.

import json

def Print():
    return flask.jsonify({"list": json.loads(str(My_class([6, 9])))})