crewAI/src/crewai/cli/run_crew.py

import subprocess

import click
import tomllib
from packaging import version

from crewai.cli.utils import get_crewai_version


def run_crew() -> None:
    """
    Run the crew by running a command in the UV environment.
    """
    command = ["uv", "run", "run_crew"]
    crewai_version = get_crewai_version()
    min_required_version = "0.71.0"

    with open("pyproject.toml", "rb") as f:
        data = tomllib.load(f)

    if data.get("tool", {}).get("poetry") and (
        version.parse(crewai_version) < version.parse(min_required_version)
    ):
        click.secho(
            f"You are running an older version of crewAI ({crewai_version}) that uses poetry pyproject.toml. "
            f"Please run `crewai update` to update your pyproject.toml to use uv.",
            fg="red",
        )
        print()

    try:
        subprocess.run(command, capture_output=False, text=True, check=True)

    except subprocess.CalledProcessError as e:
        click.echo(f"An error occurred while running the crew: {e}", err=True)
        click.echo(e.output, err=True, nl=True)

        with open("pyproject.toml", "rb") as f:
            data = tomllib.load(f)

        if data.get("tool", {}).get("poetry"):
            click.secho(
                "It's possible that you are using an old version of crewAI that uses poetry, please run `crewai update` to update your pyproject.toml to use uv.",
                fg="yellow",
            )

    except Exception as e:
        click.echo(f"An unexpected error occurred: {e}", err=True)