[Paraview] Problem reading a numpy NPZ file in ParaView 5.2.0 on Windows

[Guillaume Jacquenot]

I want to report that this bug also occurs on the Linux version of ParaView
5.2.0

2017-01-04 10:14 GMT+01:00 Guillaume Jacquenot <
guillaume.jacquenot at gmail.com>:

> Hello everyone,
>
> I want to report a possible bug.
>
> I have a Python script that creates data, exports data in a numpy NPZ
> file, and reads it later in a ProgrammableFilter.
>
> With ParaView 5.1.2, everything works fine.
>
> However, when I try it with ParaView 5.2.0, I have a weird reading error.
>
> I have checked the 'About ParaView' window, but see no real difference
> between
> the two versions.
>
> If I try to import the PV 5.2.0 npz generated file in another Python
> interpreter with anoter numpy version (1.11.3), I have no problem.
>
> So I guess, the PV 5.2.0 npz generated files are correct, but there is a
> problem accessing its content from PV 5.2.0
>
> Here is a script that reproduces the bug. It is to be run from the PV
> interpreter.
>
>     import os
>     import tempfile
>     import numpy as np
>     outputFilename = os.path.join(tempfile.mkdtemp(), 'dummy.npz')
>     varName='Time'
>     np.savez(outputFilename, **{varName:np.random.rand(3,4)})
>     d = np.load(outputFilename)
>     time = d[varName]
>     d.close()
>     os.remove(outputFilename)
>     print('Success PV can create a NPZ file and read its content : ' +
> outputFilename)
>
> Here is the message error on Windows with PV 5.2.0
>
> >>> Traceback (most recent call last):
>   File "<string>", line 8, in <module>
>   File "D:\ParaView-5.2.0-Qt4-OpenGL2-Windows-64bit\bin\lib\
> site-packages\numpy\lib\npyio.py", line 250, in __getitem__
>     return format.read_array(bytes)
>   File "D:\ParaView-5.2.0-Qt4-OpenGL2-Windows-64bit\bin\lib\
> site-packages\numpy\lib\format.py", line 437, in read_array
>     shape, fortran_order, dtype = read_array_header_1_0(fp)
>   File "D:\ParaView-5.2.0-Qt4-OpenGL2-Windows-64bit\bin\lib\
> site-packages\numpy\lib\format.py", line 334, in read_array_header_1_0
>     d = safe_eval(header)
>   File "D:\ParaView-5.2.0-Qt4-OpenGL2-Windows-64bit\bin\lib\
> site-packages\numpy\lib\utils.py", line 1132, in safe_eval
>     return walker.visit(ast)
>   File "D:\ParaView-5.2.0-Qt4-OpenGL2-Windows-64bit\bin\lib\
> site-packages\numpy\lib\utils.py", line 980, in visit
>     return meth(node, **kw)
>   File "D:\ParaView-5.2.0-Qt4-OpenGL2-Windows-64bit\bin\lib\
> site-packages\numpy\lib\utils.py", line 987, in visitExpression
>     for child in node.getChildNodes():
> AttributeError: 'Expression' object has no attribute 'getChildNodes'
>
> Guillaume Jacquenot
>
>
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