SO40228607 | Python Fiddle

import copy
from copy import deepcopy
def dict_get_val_path(dct,val,path=[],results=[]):
    '''finds the 'paths' to a value in a dictionary
    (the keys you need to step through to get to the value)
    '''
    if dct == None:
        pass
    elif type(dct) == list:
        dummy_idx = 0
        for item in dct:
            if item == val:
                temp = path[0:]
                temp.append(dummy_idx)
                results.append(temp)
            if isinstance(item, dict):
                for key in item.keys():     
                    temp = path[0:]
                    temp.append(dummy_idx)
                    assign = dict_get_val_path(item,val,temp)
                    if assign != None:
                        if assign not in results:
                            results.append(assign)                            
            dummy_idx+=1
    elif type(dct) == dict:
        for key in dct.keys():
            if dct[key] == val:
                temp = path[0:]
                temp.append(key)
                if temp not in results:
                    results.append(temp)            
            temp = path[0:]
            temp.append(key)
            assign = dict_get_val_path(dct[key],val,temp) 
            if assign is not None:
                if assign not in results:
                    results.append(assign)
    return results

def processed_searches(dct,search_term):
  results = []
  results = dict_get_val_path(dct,val=search_term,path=[],results=[])
  if len(results[0]) > 0:
    results[0] = results[0][-1]
  if len(results) > 0:
    results = results[-1:]
  new_results = []
  for item in results:
    if item not in new_results:
      new_results.append(item)
  return new_results
    
tst_small = {
  "ghi": 2,
  "def": {
    "xyz": {
      "abc": {
        "Legs": [
          {
            "yut": 6752.0,
            "nvm": {}
          }
        ],
        "wtf": {
          "hmm": 6751.0,
          "okk": 6754.0
        }
      },
      "jam": {
        "nfw": [
          {
            "pft": 6757.0,
            "who": 6762.0
            }]
            }
            }
            }}

tst_small_2 = deepcopy(tst_small)
print processed_searches(tst_small,6751.0)
print processed_searches(tst_small,6752.0)
print processed_searches(tst_small,6754.0)
print processed_searches(tst_small,6757.0)
These DON'T. Why?

tst_small_3 = deepcopy(tst_small)
print processed_searches(tst_small_3,6751.0)
print processed_searches(tst_small_3,6752.0)
print processed_searches(tst_small_3,6754.0)
print processed_searches(tst_small_3,6757.0)

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