Thanks Bryan ;)
A little addendum : * This feature is relatively new, and even if we have been testing it and have fixed, in particular, some platform-dependent issues - Did you read windows issues ? - some nasty bugs might still subsist. Please, please, please, do not let them be : allow us to hunt them, report them ! :) [1]
* On a performance side, I'd be very interested on any comparative ram usage reports from you, regular bot owners. Ram usage on interwiki runs has always been a problem, and it has also always been a very tricky issue to diagnose, because it depends a lot on the data (obviously, if only a couple of interwiki cycles are encountered during the run, very little memory will be used). Any comparative data on memory usage with and without diskcache would be much appreciated.
Thanks :)
[1] https://sourceforge.net/projects/pywikipediabot/ or simply #pywikipediabot on Freenode