Re: [yt-dev] lost weak reference

That is one way to fix this, yes, although maybe making sure the reference doesn't go out of scope would be easier?

I'll definitely make sure that it doesn't croak in the future (I believe I've sorted it out since I sent this email-- I did, in fact, do something dumb) but this bit took a while to run so if I _can_ fix the thing I have that'd be sweet. I did try re-attaching the parameter file, but it didn't seem to take-- I think I'll just punt and read papers today and re-run this analysis without the dumb-ness. Thanks a ton! d.

On Fri, Aug 10, 2012 at 12:39 PM, david collins wrote:

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Ah. I know what the parameter file _should_ be, can I go re-assign it to the clumps?

d.

On Fri, Aug 10, 2012 at 10:33 AM, Matthew Turk wrote:

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Hi Dave,

Looks like the reference is not to the data object, but the parameter file. From this context it's tough to see how that reference expired, though. It could have happened if something like this were done:

data = load("something").h.all_data()

or if you ha a pf variable that was not held anywhere else that then went out of scope.

-Matt

On Fri, Aug 10, 2012 at 12:31 PM, david collins wrote:

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Hi, all--

Is there a way to reconstruct a bad data object? I'm making a bunch of clumps, but some how (unsure how right now) the weak reference to "data" on some of them is evaporating.

Thanks, d.

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> the_clumps[1].data Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Users/dccollins/local2/src/yt-hg/yt/data_objects/data_containers.py", line 3006, in __repr__ s = "%s (%s): " % (self.__class__.__name__, self.pf) ReferenceError: weakly-referenced object no longer exists

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