Nested Dict Python getting Keys and Max of value

Question

I have dict something like this

d = { address { 'Avenue' : 3000,
                'Street' : 3000,
                'road' : 4000},
      movieprice {
                  'panda' : 40,
                   'fastandfurious' : 30,
                   'starwars': 50}}

I want out put something like this

address Avenue,Street,road 4000 ---> last Column should max of values max(3000,3000,4000)
movie panda,fastandfurious,starwars 50 --> max of value.

Any help appreciated.

Your `d` is not a valid Python dictionary. And what have you tried so far? — Selcuk, Mar 25 '16 at 05:22
how to sort dict by value: http://stackoverflow.com/questions/613183/sort-a-python-dictionary-by-value hope this helps — Thiru, Mar 25 '16 at 05:35

score 1 · Answer 1 · answered Mar 25 '16 at 05:29

What about this (assuming we fix your dictionary):

d = {'address': {'Avenue': 3000,
                 'Street': 3000,
                 'road': 4000},
     'movieprice': {'panda': 40,
                    'fastandfurious': 30,
                    'starwars': 50}}

for k, nested in d.items():
    print("%s %s, %d" % (k, ', '.join(nested.keys()), max(nested.values())))

Prints:

address Street, road, Avenue, 4000
movieprice panda, fastandfurious, starwars, 50

Thanks guys for helping. I have corrected my dict. – Ram Mar 28 '16 at 18:03 — Ram, Mar 28 '16 at 18:03

score 0 · Answer 2 · answered Mar 25 '16 at 05:30

To find the maximum value of a dictionary you can just do

d = some_dictionary
max(d.values())

That will give you the maximum value. As for finding which keys have that max value you'd have to iterate through the dictionary keys and test against max(d.values()) because multiple keys could have the same value. So it'd be something like so

d = some_dictionary
max_value_keys = [d[x] for x in d.keys if d[x] == max(d.values())]

score 0 · Answer 3 · answered Mar 25 '16 at 05:32

First, you need to make your dictionary valid. If you're nesting it inside another dictionary, you have to define each dictionary as a value of a key-value pair. Here is the correct code:

d = { 'address' : { 'Avenue' : 3000,
            'Street' : 3000,
            'road' : 4000},
      'movieprice' : {
              'panda' : 40,
               'fastandfurious' : 30,
               'starwars': 50}}

From there, you can use Bah's solution to loop through the dictionaries and print their keys and the max of their values.

score 0 · Answer 4 · answered Mar 25 '16 at 05:47

Sort the dictionary and print the values

import operator
d = {} # your nested dictonary
for k, nested in d.items():
    print k, ",".join([item[0] for item in sorted(nested.items(), key=operator.itemgetter(0))]), max(nested.values())

output:

movieprice fastandfurious,panda,starwars 50
address Avenue,Street,road 4000

score 0 · Answer 5 · answered Mar 25 '16 at 05:54

0

Try the following:

for i in d:
    print i, ','.join(d[i].keys()), max(d[i].values())

>>> for i in d:
...     print i, ','.join(d[i].keys()), max(d[i].values())
... 
movieprice starwars,panda,fastandfurious 50
address Street,Avenue,road 4000
>>>

answered Mar 25 '16 at 05:54

A.J. Uppal

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Nested Dict Python getting Keys and Max of value

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