Update Nested Dictionary value using Recursion

Question

I want to update Dict dictionary's value by inp dictionary's values using recursion or loop. also the format should not change mean use recursion or loop on same format please suggest a solution that is applicable to all level nesting not for this particular case

dict={ "name": "john", "quality": { "type1":"honest", "type2":"clever" }, "marks": [ { "english":34 }, { "math":90 } ] } 

inp = { "name" : "jack", "type1" : "dumb", "type2" : "liar", "english" : 28, "math" : 89 } 

Answer 1

Another solution, changing the dict in-place:

dct = { "name": "john", "quality": {"type1": "honest", "type2": "clever"}, "marks": [{"english": 34}, {"math": 90}], } inp = { "name": "jack", "type1": "dumb", "type2": "liar", "english": 28, "math": 89, } def change(d, inp): if isinstance(d, list): for i in d: change(i, inp) elif isinstance(d, dict): for k, v in d.items(): if not isinstance(v, (list, dict)): d[k] = inp.get(k, v) else: change(v, inp) change(dct, inp) print(dct) 

Prints:

{ "name": "jack", "quality": {"type1": "dumb", "type2": "liar"}, "marks": [{"english": 28}, {"math": 89}], } 

Answer 2

First, make sure you change the name of the first Dictionary, say to myDict, since dict is reserved in Python as a Class Type.

The below function will do what you are looking for, in a recursive manner.

def recursive_swipe(input_var, updates): if isinstance(input_var, list): output_var = [] for entry in input_var: output_var.append(recursive_swipe(entry, updates)) elif isinstance(input_var, dict): output_var = {} for label in input_var: if isinstance(input_var[label], list) or isinstance(input_var[label], dict): output_var[label] = recursive_swipe(input_var[label], updates) else: if label in updates: output_var[label] = updates[label] else: output_var = input_var return output_var myDict = recursive_swipe(myDict, inp) 

You may look for more optimal solutions if there are some limits to the formatting of the two dictionaries that were not stated in your question.