Is there a way to use python's argparse without explicitly listing what arguments are being passed in with add_argument?

Asked Jan 10 '19 at 17:15

Active Jan 10 '19 at 17:23

Viewed 25 times

I'm setting up a render farm that will be handling all sorts of jobs, with different arguments passed via command line. I'd rather not have to update the following params list every time I add a new command line parameter/kwarg. Is there a way to access the arguments being passed in with argparse without explicitly using add_argument for each kwarg?

params = ['type', 'action', 'renderDir', 'destination', 'computer', 'user', 'msg', 'data1']
parser = argparse.ArgumentParser()
for p in params:
    parser.add_argument(f'-{p}', f'--{p}')
args = parser.parse_args()

For example, if I use command line to pass in -myParameter, I'd rather not have to add 'myParameter' to the params list in order to access args.myParameter. I'd also like to be able to access the keys as I iterate through args, so I have access both to the string 'myParameter' and to the value of args.myParameter.

edited Jan 10 '19 at 17:23

asked Jan 10 '19 at 17:15

beezle

Without writing your own parser? probably not. – Maximilian Burszley Jan 10 '19 at 17:19
And recent https://stackoverflow.com/questions/54076485/argumentparser-parsing-optional-arguments-not-defined-in-parser (with lots of duplicates). – hpaulj Jan 10 '19 at 17:26
`vars(args)` is a dictionary, giving access to the `attributes` as `keys`. – hpaulj Jan 10 '19 at 17:42
1

You could scan `sys.argv` for `'-{}` and '--{}` strings, and add those to your `params` list. – hpaulj Jan 10 '19 at 19:45
@hpaulj yup. I discovered sys.argv a couple hours ago. exactly what I needed. thanks. – beezle Jan 10 '19 at 20:40

Is there a way to use python's argparse without explicitly listing what arguments are being passed in with add_argument?

0 Answers0