python-argparse-subdec
This is a very simple Python package that allows one to create argparse's subcommands via function decorators.
Usage
Create a SubDec object:
import argparse_subdec
# Create the object to collect subcommands via decorators
sd = argparse_subdec.SubDec()
Now, we can define our subcommands. We define a subcommand by decorating a function with method calls to sd, like below:
@sd.add_argument('--option', default='123')
@sd.add_argument('--another')
def foo(args):
print(f'foo subcommand: --option={args.option!r} and --another={args.another!r}')
You can use any method name that you would use in a subparser. In our example above, we used add_argument, probably most commonly used. When creating the subparsers, sd will replay those calls to the created subparser for the foo subcommand.
In the example below we define a second subcommand, which will be named foo-bar:
@sd.cmd(prefix_chars=':')
@sd.add_argument('positional_arg', type=int)
def foo_bar(args):
print(f'foo-bar subcommand: {args.positional_arg!r}')
Note that we use a special decorator, sd.cmd, which makes sd pass all of its arguments down to add_parser() when creating the subparser for foo-bar.
Once our subcommands are defined, we must call sd.create_parsers() in order to effectively create the subparsers:
parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers()
sd.create_parsers(subparsers)
The following is example of how we would call the subcommands:
args = parser.parse_args(['foo', '--another', 'hello'])
args.fn(args) # The subcommand function is assigned to ``args.fn`` by default
# Outputs: foo subcommand: --option='123' and --another='hello'
For more details about the API, check out the subdec module.
Install
Via pip:
pip install argparse-subdec
634 Dec 22, 2022
29 Dec 6, 2022
10 Aug 1, 2022
364 Jan 8, 2023
1.5k Jan 5, 2023
1.8k Jan 6, 2023
102 Jan 6, 2023
34 Oct 27, 2022
2 Nov 5, 2021
0 Feb 6, 2022
10 May 2, 2022
326 Dec 15, 2022
10.1k Dec 31, 2022
1 Jan 9, 2022
6.4k Jan 5, 2023
11k Dec 30, 2022
419 Dec 26, 2022
55 Dec 27, 2022
10.9k Jan 1, 2023
85 Dec 17, 2022
30.2k Jan 08, 2023
1 Feb 09, 2022
32 Jun 23, 2022
6 Dec 25, 2021
86 Dec 19, 2022
1.7k Jan 08, 2023
4 Dec 10, 2021
83 Dec 26, 2022
1 Dec 17, 2021
23 Jun 29, 2022
45 Dec 26, 2022
1 Oct 31, 2021
32 Jan 06, 2023
19 Jul 20, 2022
3 Sep 10, 2022
74 Aug 31, 2022
1.4k Jan 09, 2023
1 Sep 11, 2022
1 Jan 03, 2022