build.py 文件源码

def ensure_module(module_name: str):
    """
    Makes sure that a module is importable.

    In case the module cannot be found, print an error and exit.

    Args:
        module_name: name of the module to look for
    """
    try:
        importlib.import_module(module_name)
    except ModuleNotFoundError:
        click.secho(
            f'Module not found: {module_name}\n'
            f'Install it manually with: "pip install {module_name}"\n'
            f'Or install all dependencies with: "pip install -r requirements-dev.txt"',
            fg='red', err=True)
        exit(-1)