How do I validate dicts in Python with examples?

In Python, validating dictionaries (dicts) is an essential task to ensure the data contains the expected keys and values types. This is especially important in applications that rely on data integrity. Below are some common methods for validating dictionaries.

Example of Validating a Dictionary

def validate_dict(input_dict): # Define the expected structure expected_structure = { 'name': str, 'age': int, 'email': str } for key, expected_type in expected_structure.items(): if key not in input_dict: return f"Missing key: {key}" if not isinstance(input_dict[key], expected_type): return f"Incorrect type for {key}: expected {expected_type}, got {type(input_dict[key])}" return "Validation successful!" # Example usage user_data = { 'name': 'Alice', 'age': 30, 'email': 'alice@example.com' } result = validate_dict(user_data) print(result) # Output: Validation successful!

Python dict validation validate dictionary Python dictionary structure validation

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