Python Find Duplicates In List

Now let us check if there are any duplicates in this list below

Lostofelements = ['ok', 'good', 'better', 'good', 'excellent', 'ok']

We can check for duplicates by the below steps

1. Firstly add list contents into a set
2. Compare the size of the list and the set

Example:

First, we create a function which follows the before mentioned algorithm

def checkDuplicates_1(listOfElems):

   ''' Check if given list have any duplicates '''

   if len(listOfElems) == len(set(listOfElems)):

       return False

   else:

       return True

Then in the second step lest us check for the duplicates 

 

listOfElems = [‘ok’, ‘good’, ‘better’, ‘good’, ‘excellent’, ‘ok’]

result = checkIfDuplicates_1(listOfElems)

if result:

   print('Yes, list have duplicates')

else:

   print('there are no duplicates in the list')   

Output: Yes, list have duplicates