一起使用 Argparse 和 Json

The args Namespace from parse_args can be transformed into a dictionary with:

argparse_dict = vars(args)

JSON值也在字典中，比如json_dict.您可以将选定的值从一个字典复制到另一个字典，或进行整体更新:

argparse_dict.update(json_dict)

这样，json_dict个值会覆盖argparse值.

If you want to preserve both, you either need to have different argument (key) names, or the values have to be lists, which you can append or extend. That takes a bit more work, starting with using the correct nargs value in argparse.

修订版parser通过测试输入生成:

In [292]: args=parser.parse_args('-p one -q two -r three'.split())
In [293]: args
Out[293]: Namespace(param1='one', param2='two', param3='three')
In [295]: args_dict = vars(args)    
In [296]: args_dict
Out[296]: {'param1': 'one', 'param2': 'two', 'param3': 'three'}

解析时的JSON字符串(json.loads？)生成一个字典，如:

In [317]: json_dict
Out[317]: 
{'testOwner': 'my name',
 'testParameters': {'test1': {'param1': '0', 'param2': '20', 'param3': 'True'},
  'test2': {'param1': 'cc'}},
 'tests': ['test1', 'test2', 'test3']}

I produced this by pasting your display into my Ipython session, but I think the JSON loader produces the same thing

argparse值可以添加以下内容:

In [318]: json_dict['testParameters']['test3']=args_dict
In [319]: json_dict
Out[319]: 
{'testOwner': 'my name',
 'testParameters': {'test1': {'param1': '0', 'param2': '20', 'param3': 'True'},
  'test2': {'param1': 'cc'},
  'test3': {'param1': 'one', 'param2': 'two', 'param3': 'three'}},
 'tests': ['test1', 'test2', 'test3']}

Here I added it as a 3rd test set, taking (by conincidence) a name from the tests list. json_dict['testParameters']['test2']=args_dict would replace the values of test2.

One way to add the args values to the undefined values of 'test2' is:

In [320]: args_dict1=args_dict.copy()    
In [322]: args_dict1.update(json_dict['testParameters']['test2'])
In [324]: json_dict['testParameters']['test2']=args_dict1
In [325]: json_dict
Out[325]: 
{'testOwner': 'my name',
 'testParameters': {'test1': {'param1': '0', 'param2': '20', 'param3': 'True'},
  'test2': {'param1': 'cc', 'param2': 'two', 'param3': 'three'},
  'test3': {'param1': 'one', 'param2': 'two', 'param3': 'three'}},
 'tests': ['test1', 'test2', 'test3']}

我使用这个版本的update来优先考虑JSON字典中的"cc"值.