python get deeply nested key value without for loop : folks - I'm no-so-good with Python and am trying to directly query a key value from within a nested dictionary.  Working with the following:

    "Items": {
      "Ingredients": {
        "M": {
          "sugar": {
            "S": "three quarters of a cup"

I can get what I need by using a `for loop` but if I know the the key is named `sugar` how can I .get() to it directly?  It seems like wasteful cycles to use the `for loop` when you already know what you want.