memoize to disk - python - persistent memoization

Question

Is there a way to memoize the output of a function to disk?

I have a function

def getHtmlOfUrl(url):
    ... # expensive computation

<

Answer 1

The Artemis library has a module for this. (you'll need to pip install artemis-ml)

You decorate your function:

from artemis.fileman.disk_memoize import memoize_to_disk

@memoize_to_disk
def fcn(a, b, c = None):
    results = ...
    return results

Internally, it makes a hash out of input arguments and saves memo-files by this hash.