Python JSON: Check whether a JSON string contains complex object or not

Last update on April 19 2025 12:52:54 (UTC/GMT +8 hours)

8. Check Whether a JSON String Contains a Complex Object

Write a Python program to check whether a JSON string contains complex object or not.

Sample Solution:-

Python Code:

import json
def is_complex_num(objct):
    if '__complex__' in objct:
        return complex(objct['real'], objct['img'])
    return objct

complex_object =json.loads('{"__complex__": true, "real": 4, "img": 5}', object_hook = is_complex_num)
simple_object =json.loads('{"real": 4, "img": 3}', object_hook = is_complex_num)
print("Complex_object: ",complex_object)
print("Without complex object: ",simple_object)

Output:

Complex_object:  (4+5j)
Without complex object:  {'real': 4, 'img': 3}

Flowchart:

For more Practice: Solve these Related Problems:

Write a Python program to parse a JSON string and detect if any of its values represent a complex number (using a custom marker).
Write a Python program to check if a JSON string, when converted to a Python object, contains any complex objects by scanning its values.
Write a Python program to implement a function that validates whether a JSON string contains non-standard data types such as complex numbers.
Write a Python program to use exception handling during JSON decoding to determine if the string includes complex objects.

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Python Code Editor:

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