CODEWITHSUNDEEP
pythonlistdictionarykey-value
Hamza
Hamza

Reputation: 560

How to remove the dictionary key and retain the values only in list?

I have a list of dictionary in my variable , as shown below :

category = [ { "S" : "Restaurants" }, { "S" : "Drinks" }, { "S" : "Outdoor Seating" }]

I want to remove keys and it should just give me values , output should look like :

[Restaurants,Drinks,Outdoor Seating]

Note : that length of list is varying everytime , lets say above category variable has 3 key-value pairs . It may be 2 , 4 or some other number next time, But it should return only values .How to do it ?

Upvotes: 0

Views: 1880

Answers (3)

TallChuck
TallChuck

Reputation: 1972

The essence of the answer is to loop through the list, and for each dictionary, extract the value(s) you want and stick it in a new list.

Assuming each dictionary only has a single entry with key "S", as in your example, you could do it in one line:

l = [d["S"] for d in category]

In the more general case, if we assume nothing about the number of entries in each dictionary, the single-line solution becomes only slightly more unwieldy

l = [value for d in category for value in d.values()]

Personally, I find the multi-line solution a little easier to follow:

l = []
for d in category:
    for value in d.values():
        l.append(value)

Upvotes: 2

user15801675
user15801675

Reputation:

Give this a try

category = [ { "S" : "Restaurants" }, { "S" : "Drinks" }, { "S" : "Outdoor Seating" }]
for data,cat in enumerate(category):
    for value,key in cat.items():
        category[data]=key
print(category)

Upvotes: 1

Buddy Bob
Buddy Bob

Reputation: 5889

I suggest using list comprehension to iterate through the list and get all the values of each dict.

category = [ { "S" : "Restaurants" }, { "S" : "Drinks" }, { "S" : "Outdoor Seating" }]
new = [list(dicx.values())[0] for dicx in category]

output

['Restaurants', 'Drinks', 'Outdoor Seating']

Upvotes: 1

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