py4vasp (problem with 'plot' from 'py4vasp' )

[rfaccio]

Dear all
Sorry to bother you with a python problem, but I haven't been able to fix it and I really need to use "plot" from py4vasp.
The problem is the following, when importing plot from py4vasp, for example:

import numpy as np
from py4vasp import plot
​
t1, beef = np.loadtxt("./BEEF.dat",
usecols=[1,3], unpack=True)

plot(t1, beef,
xlabel="Time step",
ylabel="Bayesian error",
title="Bayesian error estimate of forces (max) (eV Angst^-1)"

ImportError: cannot import name 'plot' from 'py4vasp' (/opt/intel/oneapi/intelpython/latest/lib/python3.7/site-packages/py4vasp/__init__.py)


Y tried several installations (e.g.: fresh or inclusive under virtual-env) in different nodes (Ubuntu 20.04.4 LTS) but the same problem occurs.
Any hint?
Best
Ricardo Faccio

[rfaccio]

Dear all
I found the error, searching in the Vaspwiki the solution is to use plotly instead of plot from py4vasp:

import plotly.express as px

Now it works.
Sorry and thanks again.
Best
Ricardo

[andreas.singraber]

Hello!

Indeed py4vasp relies on plotly (currently version 5.9.0) for generating plots, it is one of its requirements. Glad you already found the problem, thanks for posting an update!

Best,
Andreas Singraber