Function _check_pkg

libs/langchain/langchain/chat_models/base.py:196–202

(pkg: str)

def _check_pkg(pkg: str) -> None:
    if not util.find_spec(pkg):
        pkg_kebab = pkg.replace("_", "-")
        raise ImportError(
            f"Unable to import {pkg_kebab}. Please install with "
            f"`pip install -U {pkg_kebab}`"
        )