[yt-users] Fwd: YT fails at start
Nathan Goldbaum
nathan12343 at gmail.com
Thu Jun 6 01:59:49 PDT 2013
Glad you got that working. Perhaps we can incorporate this workaround into
the install script as a special case for SUSE.
If you have time, can you file an issue about this in our issue tracker?
That way we will be sure to come back to it when we clear the issue backlog
before the next release.
https://bitbucket.org/yt_analysis/yt/issues/new
On Thu, Jun 6, 2013 at 1:56 AM, John Regan <johnanthonyregan at gmail.com>wrote:
> Hi Nathan,
>
> I contacted the system admin about the dynamic linking issue. He suggested
> using the LD_PRELOAD env variable to override other linking variable and
> that worked.
>
> $ ldd
> /home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/matplotlib/_png.so
> linux-vdso.so.1 => (0x00002aaaaaaab000)
> /home/cosmos/users/jr347/2013/YT/yt-x86_64/lib64/libpng16.so.16
> (0x00002aaaaacda000)
> libpng12.so.0 => /usr/lib64/libpng12.so.0 (0x00002aaaaaf6e000)
> libz.so.1 =>
> /home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/libz.so.1
> (0x00002aaaab196000)
> libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00002aaaab3ad000)
> libm.so.6 => /lib64/libm.so.6 (0x00002aaaab6b8000)
> libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00002aaaab931000)
> libpthread.so.0 => /lib64/libpthread.so.0 (0x00002aaaabb47000)
> libc.so.6 => /lib64/libc.so.6 (0x00002aaaabd65000)
> /lib64/ld-linux-x86-64.so.2 (0x0000555555554000)
>
> $ pyyt
>
> Python 2.7.4 (default, Jun 4 2013, 11:02:31)
> [GCC 4.3.4 [gcc-4_3-branch revision 152973]] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> >>> from yt.mods import *
> >>>
>
> So everything is now working nicely. I'm not sure if this is a YT issue or
> a SUSE issue or maybe even something to do with the configuration of the
> machine I am working on.
> Likely YT's interaction with SUSE I suppose.
>
> Cheers,
> John
>
>
>
> On 5 June 2013 08:41, John Regan <johnanthonyregan at gmail.com> wrote:
>
>> Hi Nathan,
>>
>> Thanks for looking into this!
>> OK so I reset the LD_LIBRARY_PATH env variable back to the default for my
>> system. However, ldd then shows that libpng16.so.16 is not found.
>>
>> jr347 at universe:~/2013/YT> echo $LD_LIBRARY_PATH
>>
>> /opt/intel/composer_xe_2013.2.146/tbb/lib/intel64:/opt/intel/composer_xe_2013.2.146/mkl/lib/intel64:/opt/intel/composer_xe_2013.2.146/ipp/lib/intel64:/opt/intel/composer_xe_2013.2.146/debugger/lib/intel64:/opt/intel/composer_xe_2013.2.146/debugger/gui/intel64:/opt/intel/composer_xe_2013.2.146/compiler/lib/intel64:/opt/intel/mic/myo/lib:/opt/intel/mic/coi/host-linux-release/lib:/home/cosmos/share/x86_64/pp8/lib:/opt/sgi/mpt/mpt-2.07/lib
>> jr347 at universe:~/2013/YT> ldd
>> /home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/matplotlib/_png.so
>> linux-vdso.so.1 => (0x00007fffbfffe000)
>> libpng12.so.0 => /usr/lib64/libpng12.so.0 (0x00007fffbfb57000)
>> libz.so.1 => /lib64/libz.so.1 (0x00007fffbf940000)
>> libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00007fffbf636000)
>> libm.so.6 => /lib64/libm.so.6 (0x00007fffbf3bd000)
>> libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fffbf1a6000)
>> libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fffbef89000)
>> libc.so.6 => /lib64/libc.so.6 (0x00007fffbec12000)
>> /lib64/ld-linux-x86-64.so.2 (0x0000555555554000)
>> jr347 at universe:~/2013/YT> ldd
>> /home/cosmos/users/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/utilities/lib/png_writer.so
>> linux-vdso.so.1 => (0x00007fffbfffe000)
>> libm.so.6 => /lib64/libm.so.6 (0x00007fffbfb21000)
>> libpng16.so.16 => not found
>> libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fffbf903000)
>> libc.so.6 => /lib64/libc.so.6 (0x00007fffbf58c000)
>> /lib64/ld-linux-x86-64.so.2 (0x0000555555554000)
>>
>> Rerunning the install script and sourcing the activation script updates
>> LD_LIBRARY_PATH with the yt library path but this doesn't contain the
>> libpng16.so.16 library so ldd still shows a problem. Running yt help gives
>> an import error on libpng.so
>>
>> (yt-x86_64)jr347 at universe:~/2013/YT> yt help
>>
>> Traceback (most recent call last):
>> File "/home/cosmos/users/jr347/2013/YT/yt-x86_64/bin/yt", line 9, in
>> <module>
>> load_entry_point('yt==2.5.3', 'console_scripts', 'yt')()
>> File
>> "/home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/distribute-0.6.32-py2.7.egg/pkg_resources.py",
>> line 337, in load_entry_point
>> return get_distribution(dist).load_entry_point(group, name)
>> File
>> "/home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/distribute-0.6.32-py2.7.egg/pkg_resources.py",
>> line 2311, in load_entry_point
>> return ep.load()
>> File
>> "/home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/distribute-0.6.32-py2.7.egg/pkg_resources.py",
>> line 2017, in load
>> entry = __import__(self.module_name, globals(),globals(),
>> ['__name__'])
>> File
>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/utilities/command_line.py",
>> line 29, in <module>
>> from yt.mods import *
>> File "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/mods.py", line
>> 60, in <module>
>>
>> from yt.data_objects.api import \
>> File
>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/data_objects/api.py",
>> line 31, in <module>
>> from grid_patch import \
>> File
>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py",
>> line 35, in <module>
>> from yt.data_objects.data_containers import YTFieldData
>> File
>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py",
>> line 45, in <module>
>> from yt.data_objects.derived_quantities import GridChildMaskWrapper
>> File
>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/data_objects/derived_quantities.py",
>> line 36, in <module>
>> from yt.utilities.parallel_tools.parallel_analysis_interface import \
>> File
>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/utilities/parallel_tools/parallel_analysis_interface.py",
>> line 39, in <module>
>> from yt.utilities.lib import \
>> File
>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/utilities/lib/__init__.py",
>> line 35, in <module>
>> from .png_writer import *
>> ImportError: libpng16.so.16: cannot open shared object file: No such file
>> or directory
>>
>>
>> Cheers,
>> John
>>
>>
>>
>>
>> On 4 June 2013 18:32, Nathan Goldbaum <nathan12343 at gmail.com> wrote:
>>
>>> Hi John,
>>>
>>> So the issue is that matplotlib's png extension _png.so, is dynamically
>>> linking against /usr/lib65/libpng12.so.0. yt builds its own libpng, which
>>> lives in /yt-x86_64/lib64/libpng16.so.16. When things are working
>>> correctly, ldd should show that _png.so is pointing at yt's libpng.
>>>
>>> You mentioned that you added libpng to your LD_LIBRARY_PATH in your
>>> first e-mail. First, I'd like you to delete that entry. After resetting
>>> LD_LIBRARY_PATH, ldd should show that _png.so is loading yt's libpng.
>>> Next, to make sure that everything is configured correctly, I'd like you
>>> to remove the 'done' file that lives in the matplotlib source directory
>>> in yt-x86_64/src/matplotlib-1.2.1, then rerun the install script. Do not
>>> rerun the install script in the yt environment (i.e. you should not see
>>> (yt-x86_64) in your prompt).
>>>
>>> Please let us know if you run into any issues once you've done that.
>>> Also please feel free to stop by on our IRC channel (webchat is here:
>>> http://yt-project.org/irc.html) so we can help you out in real time.
>>>
>>> Cheers,
>>>
>>> Nathan
>>>
>>>
>>>
>>>
>>> On Tue, Jun 4, 2013 at 9:41 AM, John Regan <johnanthonyregan at gmail.com>wrote:
>>>
>>>> Hi Matt,
>>>>
>>>> (yt-x86_64)jr347 at universe:~/2013/Stats/Halo1/DMonly/Enzo_Analysis/YT>
>>>> ldd
>>>> /home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/matplotlib/_png.so
>>>> linux-vdso.so.1 => (0x00007fffbfffe000)
>>>> libpng12.so.0 => /usr/lib64/libpng12.so.0 (0x00007fffbfb56000)
>>>> libz.so.1 =>
>>>> /home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/libz.so.1
>>>> (0x00007fffbf93f000)
>>>> libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00007fffbf635000)
>>>> libm.so.6 => /lib64/libm.so.6 (0x00007fffbf3bb000)
>>>> libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fffbf1a5000)
>>>> libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fffbef88000)
>>>> libc.so.6 => /lib64/libc.so.6 (0x00007fffbec10000)
>>>> /lib64/ld-linux-x86-64.so.2 (0x0000555555554000)
>>>> (yt-x86_64)jr347 at universe:~/2013/Stats/Halo1/DMonly/Enzo_Analysis/YT>
>>>> (yt-x86_64)jr347 at universe:~/2013/Stats/Halo1/DMonly/Enzo_Analysis/YT>
>>>> ldd
>>>> /home/cosmos/users/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/utilities/lib/png_writer.so
>>>> linux-vdso.so.1 => (0x00007fffbfffe000)
>>>> libm.so.6 => /lib64/libm.so.6 (0x00007fffbfb20000)
>>>> libpng16.so.16 =>
>>>> /home/cosmos/users/jr347/2013/YT/yt-x86_64/lib64/libpng16.so.16
>>>> (0x00007fffbf8de000)
>>>> libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fffbf6c1000)
>>>> libc.so.6 => /lib64/libc.so.6 (0x00007fffbf349000)
>>>> libz.so.1 =>
>>>> /home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/libz.so.1
>>>> (0x00007fffbf132000)
>>>> /lib64/ld-linux-x86-64.so.2 (0x0000555555554000)
>>>> (yt-x86_64)jr347 at universe:~/2013/Stats/Halo1/DMonly/Enzo_Analysis/YT>
>>>>
>>>>
>>>> Anything there look out of place?
>>>>
>>>> John
>>>>
>>>>
>>>>
>>>> On 4 June 2013 17:32, Matthew Turk <matthewturk at gmail.com> wrote:
>>>>
>>>>> Hi John,
>>>>>
>>>>> Ah, thanks. So png_set_longjmp_fn is something that we disable inside
>>>>> libpng when we build it, through the flag PNG_SETJMP_NOT_SUPPORTED
>>>>> (line 193 or so of yt/utilities/lib/setup.py) which leads me to
>>>>> believe that something is amiss with how _png.so is compiled. What's
>>>>> the output of:
>>>>>
>>>>> ldd
>>>>> /home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/matplotlib/_png.so
>>>>> ldd
>>>>> /home/cosmos/users/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/utilities/lib/png_writer.so
>>>>>
>>>>> -Matt
>>>>>
>>>>> On Tue, Jun 4, 2013 at 12:27 PM, John Regan <
>>>>> johnanthonyregan at gmail.com> wrote:
>>>>> > Hi Matt,
>>>>> >
>>>>> > Yes first thing I did was source the activation script (prefix yt
>>>>> env shown
>>>>> > below).
>>>>> > yt help throws up similar errors:
>>>>> >
>>>>> > (yt-x86_64)jr347 at universe:~/2013/Stats/Halo1/DMonly/Enzo_Analysis/YT>
>>>>> yt
>>>>> > help
>>>>> >
>>>>> > Traceback (most recent call last):
>>>>> > File "/home/cosmos/users/jr347/2013/YT/yt-x86_64/bin/yt", line 9,
>>>>> in
>>>>> > <module>
>>>>> > load_entry_point('yt==2.5.3', 'console_scripts', 'yt')()
>>>>> > File
>>>>> >
>>>>> "/home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/distribute-0.6.32-py2.7.egg/pkg_resources.py",
>>>>> > line 337, in load_entry_point
>>>>> > return get_distribution(dist).load_entry_point(group, name)
>>>>> > File
>>>>> >
>>>>> "/home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/distribute-0.6.32-py2.7.egg/pkg_resources.py",
>>>>> > line 2311, in load_entry_point
>>>>> > return ep.load()
>>>>> > File
>>>>> >
>>>>> "/home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/distribute-0.6.32-py2.7.egg/pkg_resources.py",
>>>>> > line 2017, in load
>>>>> > entry = __import__(self.module_name, globals(),globals(),
>>>>> ['__name__'])
>>>>> > File
>>>>> >
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/utilities/command_line.py",
>>>>> > line 29, in <module>
>>>>> > from yt.mods import *
>>>>> >
>>>>> > File "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/mods.py",
>>>>> line
>>>>> > 129, in <module>
>>>>> > from yt.visualization.api import \
>>>>> > File
>>>>> >
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/visualization/api.py",
>>>>> > line 34, in <module>
>>>>> > from plot_collection import \
>>>>> > File
>>>>> >
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/visualization/plot_collection.py",
>>>>> > line 26, in <module>
>>>>> > from matplotlib import figure
>>>>> > File
>>>>> >
>>>>> "/home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/matplotlib/figure.py",
>>>>> > line 32, in <module>
>>>>> > from matplotlib.image import FigureImage
>>>>> > File
>>>>> >
>>>>> "/home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/matplotlib/image.py",
>>>>> > line 22, in <module>
>>>>> > import matplotlib._png as _png
>>>>> > ImportError:
>>>>> >
>>>>> /home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/matplotlib/_png.so:
>>>>> > undefined symbol: png_set_longjmp_fn
>>>>> >
>>>>> > Cheers,
>>>>> > John
>>>>> >
>>>>> >
>>>>> > On 4 June 2013 17:19, Matthew Turk <matthewturk at gmail.com> wrote:
>>>>> >>
>>>>> >> Hi John,
>>>>> >>
>>>>> >> Sorry to hear you're having trouble! When you first tried running,
>>>>> >> did you source the environment file that yt creates? I believe for
>>>>> >> your environment it would be something like this:
>>>>> >>
>>>>> >> source /home/cosmos/users/jr347/2013/YT/yt-x86_64/bin/activate
>>>>> >>
>>>>> >> which would set the various environment variables and so on. Then
>>>>> you
>>>>> >> can try doing something simple like "yt help" to see if it will
>>>>> import
>>>>> >> correctly.
>>>>> >>
>>>>> >> Thanks,
>>>>> >>
>>>>> >> -Matt
>>>>> >>
>>>>> >> On Tue, Jun 4, 2013 at 12:10 PM, John Regan <
>>>>> johnanthonyregan at gmail.com>
>>>>> >> wrote:
>>>>> >> > Hi,
>>>>> >> >
>>>>> >> > I just installed YT and it's failing at the very start.
>>>>> >> >
>>>>> >> > Python 2.7.4 (default, Jun 4 2013, 11:02:31)
>>>>> >> > [GCC 4.3.4 [gcc-4_3-branch revision 152973]] on linux2
>>>>> >> > Type "help", "copyright", "credits" or "license" for more
>>>>> information.
>>>>> >> >>>> from yt.mods import *
>>>>> >> > Traceback (most recent call last):
>>>>> >> > File "<stdin>", line 1, in <module>
>>>>> >> > File
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/mods.py", line
>>>>> >> > 60,
>>>>> >> > in <module>
>>>>> >> > from yt.data_objects.api import \
>>>>> >> > File
>>>>> >> >
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/data_objects/api.py",
>>>>> >> > line 31, in <module>
>>>>> >> > from grid_patch import \
>>>>> >> > File
>>>>> >> >
>>>>> >> >
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/data_objects/grid_patch.py",
>>>>> >> > line 35, in <module>
>>>>> >> > from yt.data_objects.data_containers import YTFieldData
>>>>> >> > File
>>>>> >> >
>>>>> >> >
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py",
>>>>> >> > line 45, in <module>
>>>>> >> > from yt.data_objects.derived_quantities import
>>>>> GridChildMaskWrapper
>>>>> >> > File
>>>>> >> >
>>>>> >> >
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/data_objects/derived_quantities.py",
>>>>> >> > line 36, in <module>
>>>>> >> > from yt.utilities.parallel_tools.parallel_analysis_interface
>>>>> import
>>>>> >> > \
>>>>> >> > File
>>>>> >> >
>>>>> >> >
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/utilities/parallel_tools/parallel_analysis_interface.py",
>>>>> >> > line 39, in <module>
>>>>> >> > from yt.utilities.lib import \
>>>>> >> > File
>>>>> >> >
>>>>> >> >
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/utilities/lib/__init__.py",
>>>>> >> > line 35, in <module>
>>>>> >> > from .png_writer import *
>>>>> >> > ImportError: libpng16.so.16: cannot open shared object file: No
>>>>> such
>>>>> >> > file or
>>>>> >> > directory
>>>>> >> >>>>
>>>>> >> >
>>>>> >> > Adding the path to the libpng16.so.16 library gets me to here (it
>>>>> also
>>>>> >> > seems
>>>>> >> > strange that the .so file was not already in the LD_LIBRARY_PATH
>>>>> - is
>>>>> >> > there
>>>>> >> > a hint in there somewhere?):
>>>>> >> >
>>>>> >> > Python 2.7.4 (default, Jun 4 2013, 11:02:31)
>>>>> >> > [GCC 4.3.4 [gcc-4_3-branch revision 152973]] on linux2
>>>>> >> > Type "help", "copyright", "credits" or "license" for more
>>>>> information.
>>>>> >> >>>> from yt.mods import *
>>>>> >> > Traceback (most recent call last):
>>>>> >> > File "<stdin>", line 1, in <module>
>>>>> >> > File
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/mods.py", line
>>>>> >> > 129, in <module>
>>>>> >> > from yt.visualization.api import \
>>>>> >> > File
>>>>> >> >
>>>>> >> >
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/visualization/api.py",
>>>>> >> > line 34, in <module>
>>>>> >> > from plot_collection import \
>>>>> >> > File
>>>>> >> >
>>>>> >> >
>>>>> "/nfs/scratch/jr347/2013/YT/yt-x86_64/src/yt-hg/yt/visualization/plot_collection.py",
>>>>> >> > line 26, in <module>
>>>>> >> > from matplotlib import figure
>>>>> >> > File
>>>>> >> >
>>>>> >> >
>>>>> "/home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/matplotlib/figure.py",
>>>>> >> > line 32, in <module>
>>>>> >> > from matplotlib.image import FigureImage
>>>>> >> > File
>>>>> >> >
>>>>> >> >
>>>>> "/home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/matplotlib/image.py",
>>>>> >> > line 22, in <module>
>>>>> >> > import matplotlib._png as _png
>>>>> >> > ImportError:
>>>>> >> >
>>>>> >> >
>>>>> /home/cosmos/users/jr347/2013/YT/yt-x86_64/lib/python2.7/site-packages/matplotlib/_png.so:
>>>>> >> > undefined symbol: png_set_longjmp_fn
>>>>> >> >
>>>>> >> >
>>>>> >> > Anybody come across this kind of error before.
>>>>> >> > The code is built on a shared memory machine, using gcc. icc is
>>>>> actually
>>>>> >> > the
>>>>> >> > default compiler but the YT script seems to pick up gcc by
>>>>> default and
>>>>> >> > it
>>>>> >> > builds (it doesn't build at all with icc).
>>>>> >> >
>>>>> >> > Install script attached in case it's helpful.
>>>>> >> >
>>>>> >> > Let me know if you need anymore info. Thanks in advance!
>>>>> >> >
>>>>> >> > John
>>>>> >> >
>>>>> >> >
>>>>> >> >
>>>>> >> >
>>>>> >> > _______________________________________________
>>>>> >> > yt-users mailing list
>>>>> >> > yt-users at lists.spacepope.org
>>>>> >> > http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>>>> >> >
>>>>> >> _______________________________________________
>>>>> >> yt-users mailing list
>>>>> >> yt-users at lists.spacepope.org
>>>>> >> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>>>> >
>>>>> >
>>>>> >
>>>>> > _______________________________________________
>>>>> > yt-users mailing list
>>>>> > yt-users at lists.spacepope.org
>>>>> > http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>>>> >
>>>>> _______________________________________________
>>>>> yt-users mailing list
>>>>> yt-users at lists.spacepope.org
>>>>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>>>>
>>>>
>>>>
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