试试这个

def unique(list1):
 
    # initialize a null list
    unique_list = []
     
    # traverse for all elements
    for x in list1:
        # check if exists in unique_list or not
        if x not in unique_list:
            unique_list.append(x)
    # print list
    for x in unique_list:
        print x, 

原帖于 GeekforGeeks https://www.geeksforgeeks.org/python-get-unique-values-list/