usage-spec-argparse 1.1.0

Generates usage spec for CLIs written with argparse

usage-spec-argparse

Generates usage spec for CLIs written with argparse.

Install

pip install usage-spec-argparse

Usage

import argparse
from argparse_usage import generate

parser = argparse.ArgumentParser(prog="mycli", description="My CLI tool")
parser.add_argument("-v", "--verbose", action="store_true", help="Enable verbose output")
parser.add_argument("-f", "--file", help="Input file")
parser.add_argument("--no-color", action="store_false", help="Disable colored output")

print(generate(parser))

API

generate(parser, bin_name=None)

Generates a usage spec in KDL format from an argparse.ArgumentParser.

generate_kdl(parser, bin_name=None)

Alias for generate().

generate_json(parser, bin_name=None)

Generates a usage spec in JSON format.

convert_root(parser, bin_name=None)

Converts an argparse.ArgumentParser to the Spec data structure.

Supported Features

argparse Feature	Usage Spec Mapping
prog	name / bin
--version action	version
description	about
epilog	long_about
add_argument() (optional)	flag
add_argument() (positional)	arg
required=True	flag required=#true
action="store_true"/"store_false"	Boolean flag (no arg)
action="store_false"	negate
action="count"	count=#true
nargs="?"	required=#false
nargs="*"/"+"	var=#true
choices=[...]	choices
default=...	default
help=SUPPRESS	hide=#true
add_subparsers()	cmd (recursive)
Non-runnable subcommand groups	subcommand_required=#true

License

MIT