ArgumentParser parsing optional arguments, not defined in Parser [duplicate]

问题

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Closed 12 months ago.

I have the following lines to parse command line arguments:

...
parser = argparse.ArgumentParser(description="Arguments for Creation of delivery report")

parser.add_argument('tag', help="GIT Tag of the Release")    
parser.add_argument('--foo')    
parser.add_argument('--bar')

parsed_args = parser.parse_args(sys_args)
...

This properly works as intended with a call like:

python my_script.py tag123 --foo foo --bar bar

What I want to achieve is, that users of this script can pass additional "kwargs" as command line arguments, without needing me to define those in the parser via add_argument.

So a call to the script like this:

python my_script.py tag123 --foo foo --bar bar --a 1 --b 2

Should give me:

Namespace(tag='tag123', foo='foo', bar='bar', a='1', b='2')

Is there a way to achieve this?

Fyi: I do not know in advance what additional optional arguments will be given. So extending the parser is not an option. Consider the additional arguments as kind of **kwargs)

来源：https://stackoverflow.com/questions/54076485/argumentparser-parsing-optional-arguments-not-defined-in-parser