JSON as an interchange format
JSON represents objects, arrays, strings, numbers, booleans and null. Python's json module converts between JSON text and corresponding Python values.
Serialization and parsing
json.dumps() converts a Python value to JSON text, while json.loads() parses JSON text. The file-oriented dump() and load() functions work directly with file objects.
Validate external data
Parsing JSON successfully does not mean the data is correct for your application. Check required keys, expected types and allowed values before using the data in business logic.
Practice: save a list of products as JSON, load it, update one product and write the result back with readable indentation.
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