find where a nested key is located in the dictionary

searching-for-nested-keys.py

example_dict = {
  'hello': {
    'world': {
      'nest': 'end'
    }
  }
}

def find_key(d, value):
    for k,v in d.items():
        if isinstance(v, dict):
            path = find_key(v, value)
            if path:
                return v
        elif k == value:
            return [k]
# returns {'world': {'nest': 'end'}}
# or

def find_key(d, value):
    for k,v in d.items():
        if isinstance(v, dict):
            path = find_key(v, value)
            if path:
                result = [k] + p
        elif k == value:
            return [k]

# returns ['hello', 'world', 'nest']
          
print (find_key(example_dict,'nest'))