How do to Count the frequency of an item in a list?

Question

How do I check the frequency of an item in a list and then if that item has a frequency of 4 remove all the matching items?

context:

trying to make a go fish game in python and I need to be able to check if a players hand has four matching numbers if the player's hand does then I need to remove all four of the matching items and increase there score by 1

input

score = 0
[1,2,4,3,5,6,1,1,1]

output

[2,4,3,5,6]
score += 1

the player's hand is a list of numbers.

here is the file for the game: ''' https://github.com/StarSpace-Interactive/GoFish/tree/master/GoFish

Answer 1

Here's a solution:

from collections import Counter

score = 0
hand = [1,2,4,3,5,6,1,1,1]

counts = Counter(hand)

for num, count in counts.items():
    if count >= 4:
        hand = list(filter((num).__ne__, hand))
        score += 1

print(hand)
print(score)

And the output is:

[2, 4, 3, 5, 6]
1