slap.core.cli 0.1.3

Extension of `argparse` to provide fast and customizable argument parsing.

slap.core.cli

Extension of argparse to provide fast and customizable argument parsing.

Usage

import argparse
from typing import Any, Optional

from slap.core.cli import CliApp, Command


class HelloCommand(Command):
    def init_parser(self, parser: argparse.ArgumentParser) -> None:
        parser.add_argument("name")

    def execute(self, args: Any) -> Optional[int]:
        print(f"Hello, {args.name}!")


app = CliApp("minimal", "0.1.0")
app.add_command("hello", HelloCommand())
app.run()

Gives you the following CLI:

$ python examples/minimal.py
usage: minimal [-h] [-v] [--version] [{hello}] ...

positional arguments:
  {hello}        The subcommand to execute.
  ...            Arguments for the subcommand.

options:
  -h, --help     show this help message and exit
  -v, --verbose  Increase the verbosity level.
  --version      show program's version number and exit

subcommands:
  hello

Compatibility

Requires Python 3.6 or higher.