🔒 from command line use argparse with named arguments as bool values

[neon zenith]

I want to be able to --install or --uninstall and use those argument names but argparse to interpret them as bool values. In addition how would I best validate or limit the named arguments to only --install/--uninstall

What I don't want to do is --uninstall True or --uninstall False bool values should not be not specified by the user but assumed/default based on argument name

call python register.py --install 
call python register.py --uninstall

    parser = argparse.ArgumentParser(description="install or uninstall file")
    parser.add_argument("--install", action="store_true", help="Register file") # should be False
    parser.add_argument("--uninstall", action="store_true", help="Uninstall file") # should be true
    args = parser.parse_args()
    if not args.install and not args.uninstall: # better way to do this?
        parser.error("Please specify --register or --uninstall")
    if args.install and args.uninstall:
        parser.error("Please specify only one option --register or --Uninstall")

modify_ini(ini, "Global Clients", ".test", "testme", remove_key=args) # in modify_ini the remove_key argument adds or remove ini configurations

[prisma dome]

@neon zenith

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[neon zenith]

from command line use argparse with named arguments as bool values

[winged tide]

you can switch up the logical operators under demorgan's law

if not (args.install or args.uninstall):

[neon zenith]

Initially I thought having default python values for args would be pretty simple.

[tame wigeon]

default= in add_argument?

[pallid rune]

sounds like you want store_true and store_false with a shared dest= attribute, but i cant write/test an example atm

aight, now i can write one

parser = argparse.ArgumentParser()
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument("--install", action="store_true")
group.add_argument("--uninstall", action="store_false", dest="install")
args = parser.parse_args()
print(args)``` ```r
$ foo.py
usage: foo.py [-h] (--install | --uninstall)
foo.py: error: one of the arguments --install --uninstall is required
$ foo.py --install
Namespace(install=True)
$ foo.py --uninstall 
Namespace(install=False)```

[pallid rune]

^ is the above example what you're looking for?

[neon zenith]

I think so! I could have swore I tried store_false. Adding mutually exclusive args is great. The destination documentation didn't really click until now.

Thank you!

!close

[prisma dome]

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