helpers.py 文件源码

def download_nltk_resource_if_missing(resource_path, resource):
    """
    Download a missing resource from the Natural Language Processing Toolkit.

    :param resource_path: Link / path for NLTK resource.
    :type resource_path: str
    :param resource: Identifier / name of resource (will be used to download the resource if its not found).
    :type resource: str
    """
    try:
        nltk.data.find(resource_path)
    except LookupError:
        nltk.download(resource)