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Hi yt Users
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<div>I am trying to create a data container that is a cube from which I can extract the average density of the gas inside the cube. I am using Ramses data.</div>
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<div>When I create a data container using:</div>
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<div><font color="#0056d6">p6 = load("output_00006/info_00006.txt", fields = ["Density","x-velocity", "y-velocity", "z-velocity", "Pressure"])</font></div>
<div><font color="#0056d6">cen = [0, 0, 0]</font></div>
<div><font color="#0056d6">box = p6.h.region(cen, 0.2/p6['cm'], 0.3/p6['cm’])</font></div>
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<div><font color="#0056d6">print box["Density”]</font></div>
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<div>I get this error:</div>
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<div><font color="#e32400">TypeError: 'float' object has no attribute ‘__getitem__'</font></div>
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<div>I have tried creating a sphere as a data container and this works for the Density, but then when I try to take the AverageDensity in the sphere:</div>
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<div><font color="#0056d6">sphere = p6.h.sphere(cen, 0.7/p6['cm’])</font></div>
<div><font color="#0061ff">print sphere['AveragedDensity’]</font></div>
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<div> I get this error:</div>
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<div><font color="#e32400">enerationInProgress Traceback (most recent call last)</font></div>
<div><font color="#e32400"><ipython-input-28-574d78c4fb5c> in <module>()</font></div>
<div><font color="#e32400">----> 1 print sphere['AveragedDensity']</font></div>
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<div><font color="#e32400">/Applications/Code/yt/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in __getitem__(self, key)</font></div>
<div><font color="#e32400"> 187 return self.field_data[f]</font></div>
<div><font color="#e32400"> 188 else:</font></div>
<div><font color="#e32400">--> 189 self.get_data(f)</font></div>
<div><font color="#e32400"> 190 # Note that this is less succinct so that we can account for the case</font></div>
<div><font color="#e32400"> 191 # when there are, for example, no elements in the object.</font></div>
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<div><font color="#e32400">/Applications/Code/yt/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in get_data(self, fields)</font></div>
<div><font color="#e32400"> 514 return</font></div>
<div><font color="#e32400"> 515 elif self._locked == True:</font></div>
<div><font color="#e32400">--> 516 raise GenerationInProgress(fields)</font></div>
<div><font color="#e32400"> 517 # At this point, we want to figure out *all* our dependencies.</font></div>
<div><font color="#e32400"> 518 fields_to_get = self._identify_dependencies(fields_to_get)</font></div>
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<div>Any idea what I am doing wrong or if there is another way to go about this?</div>
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<div>Thanks</div>
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<div>Kearn</div>
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