Aim:

☛   Write a function called has_duplicates that takes a list and returns True if there is any element that appears more than once. It should not modify the original list.

Solution :

PROGRAM: (has_duplicates.py)

 
def has_duplicate(my_list):
	for k in my_list:
		if my_list.count(k) > 1 :
			return True
			break
		else :
			return False
user_list = input(" Please enter a list : ").split()
print(" Your list : " , user_list)
res = has_duplicate ( user_list )
if res :
	print( " The list contain duplicate values ")
else :
	print( " The list not contain duplicate values ")

OUTPUT:

 
Sample Output 1:
Please enter a list : 6 7 2 3 1 3 1 8 6
Your list : [ '6' , '7' , '2' , '3' , '1' , '3' , '1' , '8' , '6' ]
The list contain duplicate values

Sample Output 2:
Please enter a list : 6 7 2 3 1 8 9
Your list : [ '6' , '7' , '2' , '3' , '1' , '8' , '9' ]
The list not contain duplicate values