在python多维关联数组中迭代一个键 [英] iterating one key in a python multidimensional associative array

问题描述

我正在动态创建一个二维关联数组（字典？）

我试图循环使用它的键 - 同时保持其中一个索引不变，所以例如在第一个括号中与john相关联的所有与john相关联的值：

  myhash ['john' ] ['smith'] =地址1
 myhash ['john'] ['doe'] =地址2
  

我如何获得每个密钥的哈希的所有密钥，将第一个索引保留为john
（我想要所有的最后一个名字）

谢谢

解决方案

myhash ['john'] 本身就是字典。 （你不是创建一个多维词典，而是一个字典的字典。）

因此...

  last_names = list（myhash ['john']）
  

  for myhash ['john']中的last_name： 
＃做某事与last_name 
  

I'm dynamically creating a 2 dimensional associative array (dictionary?)

I'm trying to loop through its keys - while keeping one of the indexes constant, so for instance all of the values associated to "key" with 'john' in its first bracket:

myhash['john']['smith'] = "address 1"
myhash['john']['doe'] = "address 2"

how can i get all of the keys of the hash for each "key" keeping the first index as 'john' (i want all of the last names)

Thanks

解决方案

myhash['john'] is itself a dictionary. (You aren't creating a multi-dimensional dictionary, but rather a dictionary of dictionaries.)

Thus...

last_names = list(myhash['john'])

or if you want to do something in a loop...

for last_name in myhash['john']:
    # do something with last_name

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