Error when install meshio plugin for paraview，need help!

[wang-hairui]

Hi, meshio plugin for paraview is really a recommended feature, but I have encountered some problems when installed this plugin and don't know how to solve them.

My Ubuntu version is 22.04. I first downloaded paraview version 5.9.0

I knew I needed to configure the meshio package for the paraview python environment, so I created a new python3.8 environment in anconda and installed meshio via pip. Then I copied this package files from anconda to paraview. Through this way, I was able to successfully install meshio plugin.
But when I open .msh file, I met this error: AttributeError:module 'numpy'has no attribute 'bool'.

So I reinstalled numpy=1.23 in anconda and copied it to the paraview directory. An other error occurred when opening .msh file. The error message is shown. Could you give me some help?

[StopkaKris]

I'd like to follow up on this issue. Has there been any progress in addressing this? I know many individuals on the ParaView forums that are interested in getting this plugin working properly with ParaView:

https://discourse.paraview.org/t/is-it-possible-to-import-paraview-geometry-into-abaqus/253/3
https://discourse.paraview.org/t/paraview-meshio-plugin-py-not-designed-to-run-on-windows-or-contains-an-error/5740
https://discourse.paraview.org/t/cant-load-a-plugin-meshio/11440/3

Best regards,
Kris

Krzysztof Stopka

[reox]

So I reinstalled numpy=1.23 in anconda

that's the problem. The numpy.bool type was deprecated in 1.20 - thus, the last version you can use is 1.20. In 1.23 the type is not present anymore, hence you get this error message.

I just had this issue here too, and the solution was to install numpy==1.20 into the user directory using anaconda 2020.7:

/opt/anaconda_2020.7/python38/bin/python -m pip install --user numpy==1.20

This should install it to ~/.local/lib/python3.8/site-packages, which is already read by paraview 5.9.