import json

def write_json(data, file_path, indent=None, ensure_ascii=False):
    """
    Centralized function to write Python objects to a JSON file.

    Args:
        data: The Python object (e.g., dict, list) to serialize.
        file_path: The path to the output file.
        indent: The indentation level for pretty-printing. Defaults to None (compact).
        ensure_ascii: Whether to escape non-ASCII characters. Defaults to False.
    """
    try:
        with open(file_path, 'w', encoding='utf-8') as f:
            json.dump(data, f, indent=indent, ensure_ascii=ensure_ascii)
    except IOError as e:
        print(f"Error writing JSON to {file_path}: {e}", file=sys.stderr)
        raise
    except TypeError as e:
        print(f"Error serializing data to JSON: {e}", file=sys.stderr)
        raise