python – 访问没有嵌套循环的字典的嵌套级别
作者:互联网
我有一个字典,其中包含各种n值的协议的仿真结果(“协议”和n与我面临的问题无关).这本词典的结构如下:
myDict = {"protocol1" : {1:[some list of numbers], 2:[another list of numbers]},
"protocol2" : {1:[some list of numbers], 2:[another list of numbers]},
}
现在,为了分析结果,我会做这样的事情:
for protocol, stats in myDict.items():
for n, counts in stats.items():
# do stuff with protocol, n and counts
我想知道,如果存在一些允许我这样做的内置函数,而不必定义自定义迭代器:
for protocol, n, counts in magicFunc(myDict):
# do stuff with protocol, n and counts
在itertools中是否有某些东西可以让我这样做?
解决方法:
不确定它是否更好……我会坚持你的榜样,但它会变得更深,比如:
myDict = {
'p1': {1: [1, 2, 3], 2: [4, 5, 6]},
'p2': {3: [7, 8, 9], 4: [0, 1, 2]}
}
from collections import Mapping
def go_go_gadget_go(mapping):
for k, v in mapping.items():
if isinstance(v, Mapping):
for ok in go_go_gadget_go(v):
yield [k] + ok
else:
yield [k] + [v]
for protocol, n, counts in go_go_gadget_go(myDict):
print(protocol, n, counts)
# p2 3 [7, 8, 9]
# p2 4 [0, 1, 2]
# p1 1 [1, 2, 3]
# p1 2 [4, 5, 6]
标签:python,dictionary,python-3-x,python-3-3 来源: https://codeday.me/bug/20190624/1281170.html