Python json.JSONDecoder.__str__ Method

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The Python json.JSONDecoder.__str__ method returns a user-friendly string representation of the JSONDecoder instance.

This method is useful for displaying information about the decoder instance in a readable format.

Syntax

Following is the syntax of the Python json.JSONDecoder.__str__ method −

JSONDecoder.__str__()

Parameters

This method does not accept any parameters.

Return Value

This method returns a human-readable string representation of the JSONDecoder instance.

Example: Basic Usage

In this example, we use the json.JSONDecoder.__str__() method to get a string representation of a JSONDecoder instance −

import json

# Create JSONDecoder instance
decoder = json.JSONDecoder()

# Get string representation
str_representation = decoder.__str__()

print("JSONDecoder String Representation:", str_representation)

Following is the output obtained −

JSONDecoder String Representation: <json.decoder.JSONDecoder object at 0x7f1993db9580>

Example: Using in Print Statements

The __str__ method allows JSONDecoder instances to be directly printed in a readable format −

import json

# Create JSONDecoder instance
decoder = json.JSONDecoder()

# Print the decoder instance
print("Decoder Instance:", decoder)

Following is the output of the above code −

Decoder Instance: <json.decoder.JSONDecoder object at 0x7f7515fa54f0>

Example: Logging JSONDecoder.__str__() Output

The __str__ method can be useful for logging information about the decoder instance −

import json
import logging

# Configure logging
logging.basicConfig(level=logging.INFO)

# Create JSONDecoder instance
decoder = json.JSONDecoder()

# Log the string representation
logging.info("Decoder Instance: %s", str(decoder))

Wwe get the output as shown below −

INFO:root:Decoder Instance: <json.decoder.JSONDecoder object at 0x7f7bf4056060>

Example: Storing JSONDecoder.__str__() Output

We can store the string representation of a JSONDecoder instance for later use −

import json

# Create JSONDecoder instance
decoder = json.JSONDecoder()

# Store string representation in a variable
decoder_info = str(decoder)

print("Stored Decoder Info:", decoder_info)

The result produced is as follows −

Stored Decoder Info: <json.decoder.JSONDecoder object at 0x7f26c51520f0>

Example: Comparing JSONDecoder Instances

Using __str__, we can compare different instances of JSONDecoder in string format −

import json

# Create two JSONDecoder instances
decoder1 = json.JSONDecoder()
decoder2 = json.JSONDecoder()

# Compare their string representations
print("Decoder 1:", str(decoder1))
print("Decoder 2:", str(decoder2))
print("Are they the same?:", str(decoder1) == str(decoder2))

After executing the above code, we get the following output −

Decoder 1: <json.decoder.JSONDecoder object at 0x7fde4fc2aa50>
Decoder 2: <json.decoder.JSONDecoder object at 0x7fde4fc2ad80>
Are they the same?: False