How to use Counter in python without showing numbers

Question

I have little problem with python's Counter library. Here is an example:

from collections import Counter
list1 = ['x','y','z','x','x','x','y', 'z']
print(Counter(list1))

Output of it:

Counter({'x': 4, 'y': 2, 'z': 2})

My question is how to receive the output without quantity of repetitions?

What I want to get is:

Counter('x', 'y', 'z')

So what I supposed to use? I want sorted output from the most common elements to the rarest. — Osho, Mar 07 '21 at 16:12
"I want sorted output from the most common elements to the rarest" - see, this is important information that you should have told us in the first place. That rules out options like a set, which seem like the obvious choice from just what's in the question. — user2357112, Mar 07 '21 at 16:13

score 1 · Answer 1 · answered Mar 07 '21 at 17:09

You need to extract the keys from most_common():

from collections import Counter
list1 = ['x', 'y', 'z', 'x', 'x', 'x', 'y', 'z']

print(Counter(list1).most_common())  # ordered key/value pairs
print(Counter(list1).keys())  # keys not ordered!

keys = [k for k, value in Counter(list1).most_common()]
print(keys)  # keys in sorted order!

Out:

[('x', 4), ('y', 2), ('z', 2)]
['y', 'x', 'z']
['x', 'y', 'z']

score 0 · Answer 2 · answered Mar 07 '21 at 16:12

0

If you just want the different elements of a list, you can just convert it into a set.

That being said you can also access the keys of the Counter dictionary using the method keys to obtain a similar result.

answered Mar 07 '21 at 16:12

Educorreia

375
5
21

score 0 · Answer 3 · answered Mar 07 '21 at 16:13

0

If we consider the output of Counter as a dictionary, we can get only the strings by getting only the keys of the dictionary:

from collections import Counter
list1 = ['x','y','z','x','x','x','y','z']
values = Counter(list1).keys()
print(values)

answered Mar 07 '21 at 16:13

Ismail Hafeez

730
3
10

How to use Counter in python without showing numbers

3 Answers3