Missing function in dolfinx.io.gmshio

bchomett · December 26, 2022, 7:07pm

Dear all,
I am using dolfinx 0.5.2 and gmsh 4.8.0 (Debian package). When i try to import model_to_mesh from dolfinx.io.gmshio, i obtain the following error:

AttributeError: module ‘dolfinx.io.gmshio’ has no attribute 'model_to_mesh

If i list the functions in dolfinx.io.gmshio, there is actually no model_to_mesh. Does anyone know how to fix this?
Thanks you so much

dokken · December 26, 2022, 7:34pm

Could you print dolfinx.io.gmshio._has_gmsh?
What is the output of python3 -c "import gmsh"?
Did you have gmsh installed when you installed DOLFINx via apt-get?

Reference for variables:

github.com

FEniCS/dolfinx/blob/v0.5.2/python/dolfinx/io/gmshio.py#L26


      
          
          
from mpi4py import MPI as _MPI
          
          
__all__ = ["cell_perm_array", "ufl_mesh"]
          
          
try:
              import gmsh
              _has_gmsh = True
          except ModuleNotFoundError:
              _has_gmsh = False
          
          

          
def ufl_mesh(gmsh_cell: int, gdim: int) -> ufl.Mesh:
              """Create a UFL mesh from a Gmsh cell identifier and the geometric dimension.
          
          
    See: http://gmsh.info//doc/texinfo/gmsh.html#MSH-file-format.
          
          
    Args:
                  gmsh_cell: The Gmsh cell identifier
                  gdim: The geometric dimension of the mesh

bchomett · December 26, 2022, 7:59pm

Thanks for your answer.
This test allowed me to find the error: dolfinx.io.gmshio._has_gmsh returned False in my Python Development Environment but True using the terminal because I had not restarted the python kernel after installing python3-gmsh using apt-get… Now it works perfectly.
Thanks!

Topic		Replies	Views
Issue with gmshio import Errors	5	575	November 24, 2022
Error importing from GMSH mesh	6	331	November 5, 2023
Problem with `model_to_mesh` in `dolfinx.io.gmshio` mesh	2	264	March 25, 2024
Problem reading mesh using meshio or interfacing msh with dolfinx dolfinx mesh	2	353	December 15, 2023
Gmshio.model_to_mesh - error mesh	3	728	August 19, 2023

Missing function in dolfinx.io.gmshio

Related topics