Interactive Demo¶ Try the nestedutils library directly in your browser! This page uses Pyodide to run Python in the browser. Installed package: nestedutils Loading Pyodide... Data Source Select an example or edit the JSON directly. Valid JSON is automatically applied when you stop typing. Example 1: User Profile Example 2: E-commerce Data Example 3: API Response Custom JSON 1. Get Value (get_at) Retrieve a value from the nested data structure using dot notation: Get Value 2. Set Value (set_at) Set a value in the nested data structure. Missing containers will be created automatically: auto none dict list Set Value Fill Strategy: auto (smart defaults), none (fill gaps with None), dict (always create dicts), list (always create lists) 3. Check Existence (exists_at) Check if a path exists in the nested data structure: Check 4. Delete Value (delete_at) Delete a value from the nested data structure: Allow list mutation Delete