[Paraview] load plugin through python scripts

[曹智选]

Hi,
I am trying to write a python scripts to "visualize" simulation results.

I need load a plugin through GUI of paraview before opening data. If I
first load plugin in the GUI and then run my python scripts through
Paraview GUI -> tools ->python shell, it works well.
To load plugin in python scrips. I use the trace tool of paraview found
that the function to load plugin is:
LoadPlugin('/rohit1/data/users/zhixuanc/Soft/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libH5PartReader.so',
remote=False).

Instead of load plugin manually through GUI, I put this command at the very
beginning of the existing python scripts and run the scripts through
Paraview GUI -> tools ->python shell. But I got an error message and it
does not work:

Plot[plotname] = H5PartReader(FileName=maindirectory+subdirectory+name)

NameError: global name 'H5PartReader' is not defined

But when I go to Paraview GUI -> tools -> Manage Plugins, it shows that the
required plugin is loaded.

I am not sure what's wrong and how to fix this issue.

Could anybody give me any advice on it?
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