在python中的字典列表中提取最后一个字典

Question

对于字典列表，假设：

[{'points':50, 'time': '5:00', 'year': 2010}, 
{'points': 25, 'time': '6:00', 'month': "february"}, 
{'points':90, 'time': '9:00', 'month': 'january'},
{'points_h1':20, 'month': 'june'}]

有没有办法从中只提取最后一本字典？

Answer 1

-1索引将给出最后一个元素

d=[{'points':50, 'time': '5:00', 'year': 2010}, 
{'points': 25, 'time': '6:00', 'month': "february"}, 
{'points':90, 'time': '9:00', 'month': 'january'},
{'points_h1':20, 'month': 'june'}]

print(d[-1])

Answer 2

您也可以先反转列表，然后访问第一个字典(实际上是最后一个字典(。

lst_dicts = [{'points': 50, 'time': '5:00', 'year': 2010},
{'points': 25, 'time': '6:00', 'month': "february"},
{'points': 90, 'time': '9:00', 'month': 'january'},
{'points_h1': 20, 'month': 'june'}]
res=lst_dicts[::-1] #reversing the list
print(res[0])