What is the method to retrieve a value from a JSON file using a python function?

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The method to retrieve a value from a JSON file using a Python function is as follows:

1. Import the json module in the Python script.

2. Open the JSON file using the open() function in Python.

3. Read the contents of the file using the read() method.

4. Use the json.loads() method to parse the JSON data into a Python dictionary.

5. Retrieve the value from the dictionary using the key.

Here's an example code snippet:

import json

# Open the JSON file
with open('data.json') as file:
    # Read the JSON data
    json_data = file.read()

# Parse the JSON data into a Python dictionary
data = json.loads(json_data)

# Retrieve the value from the dictionary using the key
value = data['key_name']