[Paraview] problems using pvbatch in frozen build

[Burlen Loring]

Thanks Utakarsh. It sounds like it may be possible to work around the 
issue by not importing the lookuptable module from simple. However,  
it's "import math" that fails, and math seems like a fairly basic module 
that should always be present. Is there any chance it got left out of 
some packaging manifest used in the freeze process? having it be 
available might be a better solution.

On 07/08/2016 08:38 AM, Utkarsh Ayachit wrote:
> I got over such problems by delaying importing of those modules until 
> needed. They are not needed for most common use-cases.
>
> See:
> https://gitlab.kitware.com/paraview/paraview/commit/3af48fffd924bf5ffd11f576a261ef4eb3ff5897
>
> On Tue, Jul 5, 2016 at 2:35 PM, Burlen Loring <bloring at lbl.gov 
> <mailto:bloring at lbl.gov>> wrote:
>
>     Hi All,
>
>     I'm encountering some issues when trying to use pvbatch from a
>     frozen build(PARAVIEW_FREEZE_PYTHON=ON). Seems that certain key
>     python modules are missing.ie <http://missing.ie> math. However, I
>     can use Python shell feature in the GUI from the same build. Do we
>     have any idea about what may be wrong with pvbatch?
>
>
>     here is output from a simple test:
>
>         nid00048:~$pvbatch pvbatch-test.py
>         started
>         Traceback (most recent call last):
>           File "pvbatch-test.py", line 3, in <module>
>             from paraview.simple import *
>           File
>         "/usr/common/graphics/ParaView/builds/PV-4.4.0/lib/site-packages/paraview/simple.py",
>         line 40, in <module>
>             import lookuptable
>           File
>         "/usr/common/graphics/ParaView/builds/PV-4.4.0/lib/site-packages/paraview/lookuptable.py",
>         line 21, in <module>
>             from math import sqrt
>         ImportError: No module named math
>
>     I tried this as well:
>
>         nid00048:~$pvpython
>         Python 2.7.9 (default, Jan  8 2015, 22:29:31)
>         [GCC 4.9.1 20140716 (Cray Inc.)] on linux2
>         Traceback (most recent call last):
>           File "/etc/pythonstart", line 7, in <module>
>             import readline
>         ImportError: Excluded frozen object named readline
>         >>> import math
>         Traceback (most recent call last):
>           File "<stdin>", line 1, in <module>
>         ImportError: No module named math
>         >>>
>
>     Thanks
>     Burlen
>
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