python subroutine problem with linear=True

[zhisong]

Dear Anders,

I have been playing with your Python subroutines. They are great and very easy to use. Well done!

I am not sure how to seek for help, so I will just post it here.

I am using the master branch as of Feb 8th 2022. I want to plot the plasma response of RMP in the regression test. So I should just say, according to your manual,

m.plot_field('B', filename='C1.h5', coord='vector', time='last', linear=True, lcfs=True)

So far I have a problem with the option linear=True in plotting subroutines. I encounter an error complaining that the variable filename should not be a numpy array.

I thought the problem might come from that you have explicitly made filename as a numpy array in setup_sims by saying

filename = np.atleast_1d(filename)

However, later you wrote after if linear:

sim = np.append(sim,fpy.sim_data(filename,time=-1))

which passes the numpy array to Nate's fpy wrapper.

Changing it to

sim = np.append(sim,fpy.sim_data(filename[0],time=-1))

would fix the problem, but I am not entirely sure about your logical flow here.

Thank you in advance for your help.

Zhisong