Hi Nathan,

sorry for the delay in replying.

To install yt on the system python I followed the procedure you mentioned: entered the yt directory cloned from bitbucket, run "python setup.py install".

I did that again to check another time but the error persists.

As I said I just reinstalled the same Ubuntu version on the same computer where before yt was usually installed by following the procedure above and it was normally running.

Could reinstall cython help to solve the problem?

Thanks,

                  Roberto

On 14 February 2013 17:57, Nathan Goldbaum <nathan12343@gmail.com> wrote:

Hi Trobolo,

data_point_utilities is a c extension that gets auto generated from a cython file and then compiled into a shared library when you run the yt setup script:

$ cd $YT_HG
$ python setup.py install

Here $YT_HG is the directory containing the yt source code repository you cloned from bitbucket.

Please let us know if you continue to have difficulties installing yt after running the setup script.

Cheers,

Nathan

On Feb 13, 2013, at 10:49 PM, trobolo dinni <trobolo.trobolo.dinni5@gmail.com> wrote:

> Dear yt users,
>
> I usually install yt on system python, following the procedure suggested me in this mailing list some months ago. In general everything goes fine with the installation and I can normally use yt.
>
> Now I installed Ubuntu from scratch in my computer (where previously yt was installed and running!) and the installation seems to fine, but when I insert the command "from yt.mods import * ", I get the following error:
>
>
> ---------------------------------------------------------------------------
> ImportError                               Traceback (most recent call last)
>
> /usr/local/lib/python2.7/dist-packages/yt/<ipython console> in <module>()
>
> /usr/local/lib/python2.7/dist-packages/yt/yt/mods.py in <module>()
>      56     np.seterr(all = 'ignore')
>      57
> ---> 58 from yt.data_objects.api import \
>      59     BinnedProfile1D, BinnedProfile2D, BinnedProfile3D, \
>      60     data_object_registry, \
>
> /usr/local/lib/python2.7/dist-packages/yt/yt/data_objects/api.py in <module>()
>      29 """
>      30
> ---> 31 from grid_patch import \
>      32     AMRGridPatch
>      33
>
> /usr/local/lib/python2.7/dist-packages/yt/yt/data_objects/grid_patch.py in <module>()
>      33 from yt.utilities.definitions import x_dict, y_dict
>      34
> ---> 35 from yt.data_objects.data_containers import YTFieldData
>      36 from yt.utilities.definitions import x_dict, y_dict
>      37 from .field_info_container import \
>
> /usr/local/lib/python2.7/dist-packages/yt/yt/data_objects/data_containers.py in <module>()
>      41 from yt.config import ytcfg
>      42
> ---> 43 from yt.data_objects.derived_quantities import GridChildMaskWrapper
>      44 from yt.data_objects.particle_io import particle_handler_registry
>      45 from yt.utilities.lib import find_grids_in_inclined_box, \
>
> /usr/local/lib/python2.7/dist-packages/yt/yt/data_objects/derived_quantities.py in <module>()
>      33 from yt.data_objects.field_info_container import \
>      34     FieldDetector
> ---> 35 from yt.utilities.data_point_utilities import FindBindingEnergy
>      36 from yt.utilities.parallel_tools.parallel_analysis_interface import \
>      37     ParallelAnalysisInterface
>
> ImportError: No module named data_point_utilities
>
> I would like to ask if someone has an idea of how can I solve this problem.
>
> Thanks,
>                    Roberto
>
>

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