filecache 0.63

Persistent caching decorator

filecache

filecache is a decorator which saves the return value of functions even
after the interpreter dies. For example this is useful on functions that download
and parse webpages for example. All you need to do is specify for how long
the return values should be cached (use seconds, like time.sleep).

USAGE:

from filecache import filecache

@filecache(24 * 60 * 60)
def time_consuming_function(args):
# etc


NOTE: All arguments of the decorated function and the return value need to be
picklable for this to work.

NOTE: The cache isn't automatically cleaned, it is only overwritten. If your
function can receive many different arguments that rarely repeat, your
cache may forever grow. One day I might add a feature that once in every
100validity scans the db for outdated stuff and erases.

Tested on python 2.7 and 3.1

License: BSD, do what you wish with this. Could be awesome to hear if you found
it useful and/or you have suggestions. ubershmekel at gmail