Hi Matt,
So ironically, it took me a long time to find the right combination to make this break in the test script! The fatal combination seems to be an extract region from a boolean object.
This is the script I used:
http://paste.yt-project.org/show/3228/
It should work with any data set.
It creates 6 saved objects. Objects 1-4 work fine but 5 and 6 have the attribute error.
Elizabeth
On Mar 13, 2013, at 3:08 PM, Matthew Turk matthewturk@gmail.com wrote:
Hi Elizabeth,
Okay, this seems like it's bumped up against a problem with the way yt handles pickles. At some point in the reconstruction, data objects aren't getting separated from their parameter files.
Any chance you could make something that reproduces this on one of the workshop datasets?
-Matt
On Wed, Mar 13, 2013 at 3:03 PM, Elizabeth Tasker tasker@astro1.sci.hokudai.ac.jp wrote:
Hi,
I'm struggling to unpickle / load_object a previously pickled / save_object.
I've done:
pf.h.save_object(allclouds, "clouds_pyfindclouds2_yt")
but when I do:
clouds = pf.h.load_object("clouds_pyfindclouds2_yt")
I get:
AttributeError Traceback (most recent call last) /Users/Elizabeth/yt/src/yt-hg/scripts/iyt in <module>() ----> 1 execfile("cloud_surfacedensity_b.py")
/Users/Elizabeth/yt/src/yt-hg/scripts/iyt in <module>() 13 #file.close() 14 ---> 15 clouds = pf.h.load_object("clouds_pyfindclouds2_yt")
/Users/Elizabeth/yt/src/yt-hg/yt/data_objects/hierarchy.pyc in load_object(self, name) 328 if obj is None: 329 return --> 330 obj = cPickle.loads(obj.value) 331 if iterable(obj) and len(obj) == 2: 332 obj = obj[1] # Just the object, not the pf
/Users/Elizabeth/yt/src/yt-hg/yt/data_objects/data_containers.pyc in _reconstruct_object(*args, **kwargs) 4623 pf = pfs.get_pf_hash(pfid) 4624 cls = getattr(pf.h, dtype) -> 4625 obj = cls(*new_args) 4626 obj.field_parameters.update(field_parameters) 4627 return pf, obj
/Users/Elizabeth/yt/src/yt-hg/yt/data_objects/data_containers.pyc in __init__(self, regions, fields, pf, **kwargs) 4046 self._all_overlap = [] 4047 self._cut_masks = {} -> 4048 self._get_all_regions() 4049 self._make_overlaps() 4050 self._get_list_of_grids()
/Users/Elizabeth/yt/src/yt-hg/yt/data_objects/data_containers.pyc in _get_all_regions(self) 4057 self._all_regions.append(item) 4058 # So cut_masks don't get messed up. -> 4059 item._boolean_touched = True 4060 self._all_regions = np.unique(self._all_regions) 4061
AttributeError: ("'tuple' object has no attribute '_boolean_touched'", <function _reconstruct_object at 0x101dcd578>, ('73850deee907adf5217f43156c5057cd', 'boolean', [(GR_Enzo2_128amr5_zeus_turb_psupp_rr_0240, AMRCylinder (GR_Enzo2_128amr5_zeus_turb_psupp_rr_0240): center=[ 16. 16. 16.], _norm_vec=[ 0. 0. 1.], _radius=7.5, _height=0.100000208264), 'NOT', (GR_Enzo2_128amr5_zeus_turb_psupp_rr_0240, AMRCylinder (GR_Enzo2_128amr5_zeus_turb_psupp_rr_0240): center=[ 16. 16. 16.], _norm_vec=[ 0. 0. 1.], _radius=4.5, _height=0.100000208264)], {'bulk_velocity': array([ 0., 0., 0.]), 'center': array([ 0.5, 0.5, 0.5]), 'normal': array([ 0., 0., 1.])}))
This is all on the same computer.
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