charmonium.async_subprocess

See the documentation of the main function:

async def run(
    args: Sequence[StrBytes],
    cwd: Optional[Path] = None,
    env: Optional[Union[Mapping[StrBytes, StrBytes]]] = None,
    env_override: Optional[Mapping[StrBytes, StrBytes]] = None,
    capture_output: bool = False,
    check: bool = False,
    text: Optional[bool] = None,
) -> subprocess.CompletedProcess:
    """An async clone of `subprocess.run`.

    Suppose you have Python script that orchestrates shell commands,
    but it's too slow, and you've identified commands which can run in
    parallel. You could use `threading`, but that has GIL problems, or
    `multiprocess`, which has a high startup-cost per worker. You are
    already spinning off subprocesses, which the OS will run
    concurrently, so why not use async/await programming to express
    concurrency in a single thread?

    Note this function does not permit you to communicate
    asynchronously, just to run commands asynchronously.

    This function supports a subset of the signature of
    `subprocess.run`, that I will expand based on need. If you need
    some functionality, submit an issue or PR.

    """