[Neil Schemenauer] > Is there some way to prevent people from assigning to certain module > variables? [Tim] >> Not that I know of. If you're terribly concerned, gc could look up >> "garbage" in its dict on each access. That's what, e.g., >> PRINT_ITEM does with sys.stdout. ... [Neil] > What would happen if it's not a list? PRINT_ITEM raises RuntimeError. > I suppose the collector could do the same. Sure, that would be fine. >> But I'd be keener to see new words spelling out which parts of the gc >> interface are and aren't intended "to work" across releases ... > All of them? :-) Seriously, there could come a time when GC can no > longer be disabled. The debugging and threshold stuff is fairly > implementation dependent. get_referrers() and get_objects() are highly > implementation dependent. I suppose gc.collect() should always be > available. Anything else is fair game, IMHO. I meant "new words" in the docs, not on Python-Dev <wink>. > Incidentally, I can't say I'm happy with GC as it stands. Well, you're young and hopeful -- you'll get over both. I have, and am indeed happy with GC as it stands. > It uses too much memory now that so many objects are tracked. There I disagree, but subtly: it always used "too much" memory. The marginal memory cost in adding a gazillion new tracked types was minor, as very few programs have a gazillion frame objects or traceback objects or generator-iterator objects (etc) sitting around. The vast bulk of the damage was done the instant lists, tuples, dicts and instances got tracked. So it goes. > I had worked on the idea of a separate heap for GC objects for a while > but couldn't figure out how to make generational collection to work. Generational gimmicks are rare in non-copying collectors for this very reason, right? > As Don Beaudry's sig says: "so much code, so little time". :-) Time for Don to change his sig -- his young and hopeful days should be long gone by now too <wink>.
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