(I've added back python-ideas, because I think that is still the appropriate forum.)
>.... A new > suite type - the ``transaction`` will be added to the language. The > suite will have the semantics discussed above: modifying an object in > the suite will trigger creation of a thread-local shallow copy to be > used in the Transaction. Further modifications of the original will > cause all existing copies to be discarded and the transaction to be > restarted. ... How will you know that an object has been modified? The only ways I can think of are (1) Timestamp every object -- or at least every mutable object -- and hope that everybody agrees on which modifications should count. (2) Make two copies of every object you're using in the suite; at the end, compare one of them to both the original and the one you were operating on. With this solution, you can decide for youself what counts as a modification, but it still isn't straightforward; I would consider changing a value to be changing a dict, even though nothing in the item (header) itself changed. -jJ _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
