[Wannier] kslice Matplotlib griddata error

[Vahid Askarpour]

Dear Wannier90 community,

I am using Wannier90/3.1.0 to plot a slice of my data. The postw90.x creates the necessary python code but I get the following error when running this python script:

 File "/gpfs/scratch/vaskarpo/Mn3Ge_hex/kslice/wannier90-kslice-curv_x+fermi_lines.py", line 64, in <module>
    valint = ml.griddata(points_x,points_y, val_log, xint,yint)
AttributeError: module 'matplotlib.mlab' has no attribute ‘griddata'

Does any one know how to remedy this? I tried replacing the ml.griddata with scipy.interpolate.griddata but then I get the following error:

  File "/gpfs/scratch/vaskarpo/Mn3Ge_hex/kslice/wannier90-kslice-curv_x+fermi_lines.py", line 64, in <module>
    valint = interpolate.griddata(points_x,points_y, val_log, grid_x, grid_y)
  File "/cvmfs/soft.computecanada.ca/easybuild/software/2020/avx512/Core/scipy-stack/2023b/lib/python3.10/site-packages/scipy/interpolate/_ndgriddata.py", line 253, in griddata
    if ndim == 1 and method in ('nearest', 'linear', 'cubic'):
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

I am attaching the python script.

Any suggestion is appreciated.

Thanks,
Vahid

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