Question

我有一个包含大量python dict的文件。我想根据用户的要求加载其中一些dict。我怎么能这样做？

my_dicts_file.py：

A = { 'value_a': 0,
      'value_b':'aa'}

B = { 'value_a': 10,
      'value_b':'bb',
      'value_c':'Nd'}

....
....

Z = { 'value_4': 50,
      'value_t':'0d'}

以下代码不起作用

for i in ['A','C']:
    from my_dicts_file import i

如果可能的话，我不想加载所有的词汇

from my_dicts_file import *

Answer 1

您可以挑选变量，然后在需要时加载。要做到这一点，你可以使用Python的pickle模块

Answer 2

I'm not sure if it can do direct import like that, but I create some dummy example here.

import imp
my_dict = type('lambdaobject', (object, ), {})()
for i in ['A', 'C']:
    src = imp.load_source(i, 'my_dicts_file.py')
    setattr(mydict, i, getattr(src, i))

say if you're wanted to print variable A, you just

print my_dict.A

Dynamicaly从文件导入特定的dict

2 个答案: