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python efficiently find duplicates in list

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Combative Coyote answered on December 12, 2019 Popularity 9/10 Helpfulness 5/10

answer python efficiently find duplicates in list

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python efficiently find duplicates in list

Comment

from collections import Counter

def get_duplicates(array):
    c = Counter(array)
    return [k for k in c if c[k] > 1]

Popularity 9/10 Helpfulness 5/10 Language python

Source: stackoverflow.com

Tags: find list python

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Contributed on Jan 26 2022

Combative Coyote

0 Answers Avg Quality 2/10

Closely Related Answers

how to find duplicate numbers in list in python

Comment

l=[1,2,3,4,5,2,3,4,7,9,5]
l1=[]
for i in l:
    if i not in l1:
        l1.append(i)
    else:
        print(i,end=' ')

Popularity 10/10 Helpfulness 6/10 Language python

Source: www.educative.io

Tags: find

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Contributed on Jun 06 2021

Clear Chimpanzee

0 Answers Avg Quality 2/10

how to check if there are duplicates in a list python

Comment

>>> your_list = ['one', 'two', 'one']
>>> len(your_list) != len(set(your_list))
True

Popularity 10/10 Helpfulness 5/10 Language python

Source: Grepper

Tags: list

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Contributed on Dec 12 2019

Busy Boar

0 Answers Avg Quality 2/10

find duplicates in python list

Comment

names = ['name1', 'name2', 'name3', 'name2']
set([name for name in names if names.count(name) > 1])

Popularity 10/10 Helpfulness 5/10 Language python

Source: Grepper

Tags: find

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Contributed on May 20 2022

Eufemiano Fuentes Pérez

0 Answers Avg Quality 2/10

Check if there are duplicates in list

Comment

-1

list= ["a", "a", "b", "c", "d", "e", "f"] 

 
for x in range(0, len(list)-1):
    if(list[x]==list[x+1]):
        print("Duplicate found!");
    
    

print(list)

Popularity 9/10 Helpfulness 3/10 Language python

Source: Grepper

Tags: list

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Contributed on Jul 20 2022

Javasper

0 Answers Avg Quality 2/10

check list for duplicate values python

Comment

-2

a = [1,2,3,2,1,5,6,5,5,5]

import collections
print([item for item, count in collections.Counter(a).items() if count > 1])

## [1, 2, 5]

Popularity 10/10 Helpfulness 2/10 Language python

Source: stackoverflow.com

Tags: list

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Contributed on May 25 2021

Envious Eel

0 Answers Avg Quality 2/10

Find duplicates in array/list

Comment

arr = [1,3,6,2,1,6]

for i in range(0, len(arr)):
    for j in range(i+1, len(arr)):
        if(arr[i] == arr[j]):
            print(arr[j])		#output = 1 6

Popularity 7/10 Helpfulness 2/10 Language python

Source: www.javatpoint.com

Tags: find whatever w

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Contributed on Mar 12 2023

Sanne

0 Answers Avg Quality 2/10

identify duplicates within a single list in Python

Comment

def find_duplicates(input_list):
    seen = set()
    duplicates = set()
    for x in input_list:
        if x in seen:
            duplicates.add(x)
        seen.add(x)
    return duplicates

# Example usage
my_list = [1, 2, 3, 2, 1, 5, 6, 5, 5, 7]
print(find_duplicates(my_list))  # Output will be {1, 2, 5}

Popularity 1/10 Helpfulness 1/10 Language python

Source: chat.openai.com

Tags: identify list python

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Contributed on Apr 16 2024

Niclas Bruhns

0 Answers Avg Quality 2/10

how to check the duplicate item in list

Comment

-1

thelist = [1, 2, 3, 4, 4, 5, 5, 6, 1]
 
print(len(thelist) != len(set(thelist)))

Popularity 9/10 Helpfulness 1/10 Language whatever

Source: www.pythonprogramming.in

Tags: list

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Contributed on Oct 09 2022

Rahul Jawale

0 Answers Avg Quality 2/10

python efficiently find duplicates in list

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python efficiently find duplicates in list

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Check if there are duplicates in list

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Find duplicates in array/list

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how to check the duplicate item in list

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