Analyze unknown nested structure (e.g. list of dictionary of whatever...). In Python

analyze_nested_structure.py

from typing import Dict, List, Set, Tuple, Union
import json

def analyze_nested_structure(
    variable: Union[List, Dict, Tuple, Set], indent: int = 0
) -> None:
    """
    A generic (recursive) function to analyze the structure of a nested list, dictionary, tuple, or set.
    comment out the recursive call to avoid printing large content as required.
    """
    indent_str = " " * indent
    if isinstance(variable, dict):
        print(f"{indent_str}Dictionary with {len(variable)} keys:")
        for key, value in variable.items():
            print(f"{indent_str}  Key: {key}")
            # analyze_nested_structure(value, indent + 4)
    elif isinstance(variable, list):
        print(f"{indent_str}List with {len(variable)} elements:")
        for index, element in enumerate(variable):
            print(f"{indent_str}  Index: {index}")
            analyze_nested_structure(element, indent + 4)
    elif isinstance(variable, tuple):
        print(f"{indent_str}Tuple with {len(variable)} elements:")
        for index, element in enumerate(variable):
            print(f"{indent_str}  Index: {index}")
            analyze_nested_structure(element, indent + 4)
    elif isinstance(variable, set):
        print(f"{indent_str}Set with {len(variable)} elements:")
        for element in variable:
            print(f"{indent_str}  Element: {element}")
            analyze_nested_structure(element, indent + 4)
    else:
        print(f"{indent_str}{type(variable).__name__}: {variable}")
        
        
def main():
    # data from e.g. a json file
    json_file = "myjsonfile.json"
    with open(json_file, "r") as f:
        data = json.load(f)
        analyze_nested_structure(data)


if __name__ == "__main__":
    main()