TypeError: object of type int64 is not json serializable [SOLVED]

Having difficulty troubleshooting the "TypeError: object of type int64 is not json serializable" error?

JOKEN VILLANUEVA

~3 min read · October 8, 2024 (Updated: October 9, 2024) · Free: Yes

Worry no more! because this article will help you.

In this article, we will discuss "TypeError: object of type int64 is not json serializable", provide the causes of this error, and give a solution to resolve the error.

First, let us understand what this error means.

What is "TypeError: object of type int64 is not json serializable"?

The "TypeError: object of type 'int64' is not JSON serializable" is a Python error message that appears when you attempt to serialize an object of type 'int64' to JSON format.

This is because JSON only supports limited data types, such as strings, numbers, booleans, arrays, and objects.

The int64 data type is not included.

JSON

JSON (JavaScript Object Notation) is a lightweight data interchange format used for transmitting data between a server and a client in web applications.

JSON supports a limited set of data types, such as strings, numbers, booleans, arrays, and objects.

However, it does not support NumPy data types such as 'int64', 'float64', etc.

Numpy

NumPy is a Python library used for working with arrays and numerical operations.

It provides its own data types, such as int64, float64, etc., which are more efficient than the built-in Python data types

However, these data types are not compatible with JSON serialization.

Int64

'Int64' is a data type from the NumPy library.

It is used for numerical computations and provides a higher level of precision than the built-in Python 'int' type.

Why TypeError: object of type int64 is not json serializable occurs?

The error message "TypeError: Object of type int64 is not JSON serializable" typically occurs when you try to serialize a NumPy int64 object to a JSON string.

This error message means that the object cannot be converted to a JSON format.

Here is the Python code snippet that demonstrates the "TypeError: object of type 'int64' is not JSON serializable" error:

import json
import numpy as np
Amount = np.power(5, 3, dtype=np.int64)
json_str = json.dumps({'Amount': Amount})
print(json_str)

In this example, we use the Numpy Library to create an 'int64' object called "Amount".

Then we attempt to convert 'Amount' object to a string using the 'json.dumps()' function.

However, since 'int64' is not a JSON-serializable data type, this results in an error message:

TypeError: Object of type int64 is not JSON serializable

Now let us know how to fix this error.

How to fix TypeError: object of type int64 is not json serializable?

Here are the alternative solutions that you can use to solve "TypeError: object of type int64 is not json serializable": ⬇️⬇️⬇️