How to Access Data from JSON Converted from Dictionary?

Accessing Data in JSON Converted from Dictionary

When attempting to access data from a JSON object converted from a dictionary, you may encounter issues as demonstrated in the following code:

r = {'is_claimed': 'True', 'rating': 3.5}
r = json.dumps(r)
file.write(str(r['rating']))

This code aims to write the rating value in the JSON object r to a file. However, an error occurs because json.dumps() returns a string representation of the dictionary, not a JSON object.

Solution: Loading JSON String into Dictionary

To access data from the JSON string, you need to load it back into a dictionary using json.loads(). This method retrieves the JSON object from the string.

import json

r = {'is_claimed': 'True', 'rating': 3.5}
r = json.dumps(r)  # Save as string
loaded_r = json.loads(r)  # Retrieve as dictionary
print(loaded_r['rating'])  # Output: 3.5

Understanding json.dumps() and json.loads()

• json.dumps(): Converts a dictionary into a JSON string for storage or transmission.
• json.loads(): Decodes a JSON string into a dictionary for use in your program.

By understanding the difference between saving and retrieving JSON, you can access data from a dictionary that has been converted to and from a JSON string.

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