python function to remove duplicates from list code example

Example 1: python remove duplicates from list

mylist = ["a", "b", "b", "c", "a"]
mylist = sorted(set(mylist))
print(mylist)

Example 2: python remove duplicates from list

# remove duplicate from given_list using list comprehension
res = []
[res.append(x) for x in given_list if x not in res]

Example 3: python remove repeated elements from list

# ----- Create a list with no repeating elements ------ #

mylist = [67, 7, 89, 7, 2, 7]
newlist = []

  for i in mylist: 
    if i not in newlist: 
        newlist.append(i)

Example 4: python remove duplicate numbers

duplicate = [2, 4, 10, 20, 5, 2, 20, 4] 
print(list(set(duplicate))

Example 5: remove duplicates in sorted array python

# function for removing duplicates
def removeDuplicate(arr, n):
    j = 0
    
    # traverse elements of arr
    for i in range(0, n-1): 
        # if ith element is not equal to (i+1)th element, then store ith value in arr[j]
        if (arr[i] != arr[i+1]):
            arr[j] = arr[i]
            j = j+1

    # store last value of arr in arr[j]
    arr[j] = arr[n-1]
    j = j+1
    
    # print first j elements of array arr
    for i in range(0, j):
        print("%d"%(arr[i]), end = " ")

arr = [1, 3, 5, 5, 7, 9]
n = len(arr)
# calling function when number of elements in array is greater than 1
if (n > 1):
    removeDuplicate(arr, n)