Question

How to find duplicates from list in Python

Answer 1

import collections

lst = [34, 78, 90, 'python', 'java', 34, 'c++', 34, 'python']

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

    
   
    

'''
run:

[34, 'python']

'''

 

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Answer 2

lst = [34, 78, 90, 'python', 'java', 34, 'c++', 34, 'python']

duplicates =  set([item for item in lst if lst.count(item) > 1])

print(duplicates)


    

'''
run:

{34, 'python'}

'''

 

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