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

5 votes315 views4 answers
OSError: [E050] Can't find model 'en'. It doesn't seem to be a shortcut link, a Python package or a valid path to a data directory.
Python
0 vote374 views1 answer
Can list hold different data types in python
Python
5 votes323 views4 answers
Brew update python
Python
0 vote381 views1 answer
Wie printe ich in python
Python
0 vote358 views3 answers
How to get quarter year date in pandas
Python
2 votes310 views1 answer
Check case string python
Python
0 vote367 views1 answer
Integrate label into listbox tkinter
Python
26 votes342 views6 answers
Pandas read excel
Python
9 votes339 views3 answers
Pyramid pattern in python
Python
1 vote324 views1 answer
Number of total words in cell pandas
Python