CODEWITHSUNDEEP
pythonalgorithmlistdictionary
felix cheruiyot
felix cheruiyot

Reputation: 311

How to create pairs form python dictionary keys

For example I have a dictionary dict

my_dictionary= {'a': 20, 'c': 60, 'b': 10}

In this case I have 3 keys from the dictionary. I would like to make pairs and store them as tuples in a list. For the above case I would have this

[(a,b),(a,c),(b,c)]

Note: no repetition.

What would be the best way to go about it without any using any external modules.

Thank you for contribution.

Upvotes: 0

Views: 192

Answers (2)

lenik
lenik

Reputation: 23508

>>> dd = {'a': 20, 'c': 60, 'b': 10}
>>> keys = [i for i in dd]
>>> [(keys[i],keys[j]) for i in range(len(keys)) for j in range(i+1,len(keys))]
[('a', 'c'), ('a', 'b'), ('c', 'b')]
>>>

and usually it's not a very good idea to call your variables using reserved words (like dict)

Upvotes: 2

jamylak
jamylak

Reputation: 133554

>>> from itertools import combinations
>>> d = {'a': 20, 'c': 60, 'b': 10}
>>> list(combinations(d, r=2))
[('a', 'c'), ('a', 'b'), ('c', 'b')]

Upvotes: 7

Related Questions