python remove repeated elements from list

1mylist = ["a", "b", "b", "c", "a"]
2mylist = sorted(set(mylist))
3print(mylist)

1
2  mylist = ["a", "b", "a", "c", "c"]
3mylist = list(dict.fromkeys(mylist))
4
5  print(mylist) 

1
2# ----- Create a list with no repeating elements ------ #
3
4mylist = [67, 7, 89, 7, 2, 7]
5newlist = []
6
7  for i in mylist: 
8    if i not in newlist: 
9        newlist.append(i)
10

1''' we can convert the list to set and then back to list'''
2a=[1,1,2,3,4,5,6,6,7]
3'''b=(list(set(a))) # will have only unique elemenets'''