Option for Max Cache Age?

[celestialorb]

I've been examining anycache today and it looks like the perfect solution to a problem I've been having with a small workflow script of mine. However I noticed there doesn't seem to be a way of controlling the maximum amount of time a cached result can live for. In my script I'd like for it to update the cache after it has lived for a certain amount of time (say, every week).

I did see that there's an is_outdated function, but that seems to be based on the source file returning True whenever the source file has been updated (which makes sense).

Could we get an option to specify maxage alongside maxsize for the cached results of a function? e.g.

import datetime

@anycache(cachedir="/path/to/cache", maxage=datetime.timedelta(weeks=1), maxsize=1000000)
def my_anycached_function():
  ...

Passing in None to the maxage parameter could disable the max age check.