dcargs 0.3.21

Strongly typed, zero-effort CLI interfaces

dcargs

Documentation   •   pip install dcargs

dcargs is a library for typed CLI interfaces and configuration objects.

Our core interface, dcargs.cli(), generates argument parsers from type-annotated
callables: functions, dataclasses, classes, and nested dataclasses and classes.

This can be used as a replacement for argparse:

with argparse	with dcargs
"""Sum two numbers from argparse.""" import argparse parser = argparse.ArgumentParser() parser.add_argument( "--a", type=int, required=True, ) parser.add_argument( "--b", type=int, default=3, ) args = parser.parse_args() print(args.a + args.b)	"""Sum two numbers by calling a function with dcargs.""" import dcargs def main(a: int, b: int = 3) -> None: print(a + b) dcargs.cli(main) """Sum two numbers by instantiating a dataclass with dcargs.""" from dataclasses import dataclass import dcargs @dataclass class Args: a: int b: int = 3 args = dcargs.cli(Args) print(args.a + args.b)

For more sophisticated examples, see our documentation.