Can I prevent a cache, when I trow an exception?

[p0psicles]

This is more a user question then an issue.
But I was looking for a way to cache a result, if that result is for example None.

@recommended_series_cache.cache_on_arguments()
def cached_get_imdb_series_genres(imdb_id):
    """
    Request the series genres from the api.

    Use dogpile cache to return a cached id if available.
    """
    genres = api.get_title_genres(imdb_id)
    if not genres:
        raise Exception(f'Could not get imdb genres from {imdb_id}')
    return genres

Would this prevent it from being dogpile cached?

[zzzeek]

caching can be prevented if you raise an exception but that would raise an exception overall. what do you want the return value of cached_get_imdb_series_genres() to be when you can't get the genres? if you want it to just raise, then you can raise, there's nothing it can cache in that case.

[p0psicles]

I'm catching the thrown exception now. And that works. Before the API call would return None. And then that was cached.

So it's working nicely now. Tnx!