Adding list or dictionary in a dictionary with multiple values for one key - Python

Question

Very first Post here, apologies if it is not proper. I have 2 Dictionaries with keys and lists as values. I need to assign a list to an element of the list in a dictionary where it matches in other Dictionary 2.

Dictionary 1
{'S': ['Close Coupled', 'Wall Hung', 'Btw'], 'E':['Bifold', 'Hinge', 'Sliding', 'Pivot']}

Dictionary 2
{'Close Coupled': ['Close Coupled Contract', 'Close Coupled Open Back', 'Close Coupled Open Back Rimless'], 'Wall Hung': ['Wall Hung Contract', 'Wall Hung Rimless'],'Btw': ['BTW Contract', 'BTW Rimless'], 'Bifold': ['700', '800', '900', '1000'], 'Hinge': ['700', '800', '900', '1000'], 'Sliding': ['700', '800', '900', '1000'], 'Pivot': ['700', '800', '900', '1000']} 

Result I am trying to get is.
{'S': {'Close Coupled':['Close Coupled Contract', 'Close Coupled Open Back', 'Close Coupled Open Back Rimless'], 'Wall Hung': ['Wall Hung Contract', 'Wall Hung Rimless'], 'Btw': ['BTW Contract', 'BTW Rimless'], 'E': 'Bifold':['700', '800', '900', '1000'], 'Hinge':['700', '800', '900', '1000'],'Sliding':['700', '800', '900', '1000'], 'Pivot':['700', '800', '900', '1000']}

After his I have another dictionary which will be added same way. it is like a Tree structure or nested but I am unable to build up my logic to assign dictionary to each matching element of the list in 1st dictionary.

If it is not clear; please let me know I will try to explain it better.

Thank you

Answer 1

You can use dict comprehension to do this:

{keys : {m : d2.get(m) for m in values} for keys, values in d1.items()}


{'S': {'Close Coupled': ['Close Coupled Contract',
   'Close Coupled Open Back',
   'Close Coupled Open Back Rimless'],
  'Wall Hung': ['Wall Hung Contract', 'Wall Hung Rimless'],
  'Btw': ['BTW Contract', 'BTW Rimless']},
 'E': {'Bifold': ['700', '800', '900', '1000'],
  'Hinge': ['700', '800', '900', '1000'],
  'Sliding': ['700', '800', '900', '1000'],
  'Pivot': ['700', '800', '900', '1000']}}

DATA:

d1 = {'S': ['Close Coupled', 'Wall Hung', 'Btw'], 'E':['Bifold', 'Hinge', 'Sliding', 'Pivot']}
d2 = {'Close Coupled': ['Close Coupled Contract', 'Close Coupled Open Back', 'Close Coupled Open Back Rimless'], 'Wall Hung': ['Wall Hung Contract', 'Wall Hung Rimless'],'Btw': ['BTW Contract', 'BTW Rimless'], 'Bifold': ['700', '800', '900', '1000'], 'Hinge': ['700', '800', '900', '1000'], 'Sliding': ['700', '800', '900', '1000'], 'Pivot': ['700', '800', '900', '1000']}

Answer 2

I don't think I have understood your question correctly. However check this code and if it doesn't suit your need kindly let me know.

d1= {'S': ['Close Coupled', 'Wall Hung', 'Btw'], 'E':['Bifold', 'Hinge', 'Sliding', 'Pivot']}

d2= {'Close Coupled': ['Close Coupled Contract', 'Close Coupled Open Back', 'Close Coupled Open Back Rimless'], 'Wall Hung': ['Wall Hung Contract', 'Wall Hung Rimless'],'Btw': ['BTW Contract', 'BTW Rimless'], 'Bifold': ['700', '800', '900', '1000'], 'Hinge': ['700', '800', '900', '1000'], 'Sliding': ['700', '800', '900', '1000'], 'Pivot': ['700', '800', '900', '1000']}

final_dict= {} # create a dictionary to store the final answer
for item in d1:
    temp= dict() # temporary dictionary
    for i in item d1[item]:
        temp[i]= d2[i]
    final_dict[item]= temp

output
print(final_dict)

{'E': {'Bifold': ['700', '800', '900', '1000'],
  'Hinge': ['700', '800', '900', '1000'],
  'Pivot': ['700', '800', '900', '1000'],
  'Sliding': ['700', '800', '900', '1000']},
 'S': {'Btw': ['BTW Contract', 'BTW Rimless'],
  'Close Coupled': ['Close Coupled Contract',
   'Close Coupled Open Back',
   'Close Coupled Open Back Rimless'],
  'Wall Hung': ['Wall Hung Contract', 'Wall Hung Rimless']}} `

Answer 3

One approach would be to loop through your first dictionary and get the lists that correspond to the keys of the same name from your second dictionary. For example:

d1 = {'S': ['Close Coupled', 'Wall Hung', 'Btw'], 'E':['Bifold', 'Hinge', 'Sliding', 'Pivot']}
d2 = {'Close Coupled': ['Close Coupled Contract', 'Close Coupled Open Back', 'Close Coupled Open Back Rimless'], 'Wall Hung': ['Wall Hung Contract', 'Wall Hung Rimless'],'Btw': ['BTW Contract', 'BTW Rimless'], 'Bifold': ['700', '800', '900', '1000'], 'Hinge': ['700', '800', '900', '1000'], 'Sliding': ['700', '800', '900', '1000'], 'Pivot': ['700', '800', '900', '1000']}
result = dict()

for key, values in d1.items():
    result[key] = dict()
    for value in values:
        result[key][value] = d2[value]

print(result)

# OUTPUT (print does not output indented results shown here for readability only)
# {
#      'S': {
#          'Close Coupled': ['Close Coupled Contract', 'Close Coupled Open Back', 'Close Coupled Open Back Rimless'],
#          'Btw': ['BTW Contract', 'BTW Rimless'],
#          'Wall Hung': ['Wall Hung Contract', 'Wall Hung Rimless']
#          },
#      'E': {
#          'Bifold': ['700', '800', '900', '1000'],
#          'Hinge': ['700', '800', '900', '1000'],
#          'Sliding': ['700', '800', '900', '1000'],
#          'Pivot': ['700', '800', '900', '1000']
#          }
# }