PYTHON

how to find duplicate occurrences in python

#finds duplicate characters
def duplicatecharacters(s:str):
    for i in s:
        if s.count(i)>1:
            return True
    return False
print(duplicatecharacters(""))

python find duplicates in string

from collections import Counter

def do_find_duplicates(x):
    x =input("Enter a word = ")
    for key,val in Counter(x).items():
        print(key,val)

how to find duplicate strings in a list of string python function

sam_list = [11, 13, 15, 16, 13, 15, 16, 11] 

print ("The list is: " + str(sam_list)) 

# to remove duplicates from list 

result = [] 

[result.append(x) for x in sam_list if x not in result] 

# printing list after removal 

print ("The list after removing duplicates: " + str(result))