Duplicate in list python

Count the duplicates in a list in python

some_list=['a','b','c','b','d','m','n','n']

 my_list=sorted(some_list)
 
duplicates=[]
for i in my_list:
     if my_list.count(i)>1:
         if i not in duplicates:
             duplicates.append(i)
 
print(duplicates)

How to check if there are duplicates in a list python

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

Duplicate in list python

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]

Source: stackoverflow.com

Similar codes

1 vote237 views2 answers
Selenium text value is empty in flask returns
Python
0 vote251 views2 answers
Update a package with pip in django
Python Django
-1 vote214 views1 answer
Autopy python not installing
Python
0 vote227 views1 answer
Python csv row index is empty
Python
1 vote229 views1 answer
Calculate Euclidean Distance in Python using distance.euclidean()
Python
0 vote209 views1 answer
Python selenium send keys enter send
Python
2 votes304 views2 answers
Collections counter
Python
0 vote209 views1 answer
Networkx - remove small components from a graph
Python
1 vote208 views1 answer
Dire Bonjour en python
Python
62 votes201 views6 answers
Sort dictionary by values
Python