Python 列表去重

1、去重不保持原来的顺序:

ret_list = list(set(list))

2、去重保持原顺序(reduce):

list_o = [1,2,3,3,5,5,6,7,4,9,0]
func =lambda x,y :  x if y in x else x + [y]
list_t = reduce( func, [[],  ] + list_o)
#list_t=[1,2,3,5,6,7,4,9,0]

3、list元素是字典，去重

f = lambda x,y:x if y in x else x + [y]
data_list = reduce(f, [[], ] + data_list)