python --列表对字典去重

方法一:

import functools
list_a = [{"name": "Tom", "age": 18}, {"name": "Jerry", "age": 18}, {"name": "Tom", "age": 18}]
unique_list = functools.reduce(lambda x, y: y in x and x or x + [y], list_a, [])

方法二:

from functools import reduce

def list_dict_duplicate_removal(data_list):
    run_function = lambda x, y: x if y in x else x + [y]
    return reduce(run_function, [[], ] + data_list)

方法三:

def getNonRepeatList(data):
	for i in range(len(data)):
		data[i] = json.dumps(data[i])
	data = list(set(data))
	for i in range(len(data)):
		data[i] = json.loads(data[i])
	return data