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)
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