Plotting issue for multiple subplots in Jupyter Notebook

[florian-wagner]

Problem description

When plotting to a figure with multiple subplots, additional (non-pygimli) plots afterwards get netglected in Jupyter Notebook output

Your environment

Operating system: Linux
Python version: 3.5
pyGIMLi version: v1.0.5+71
Way of installation: manual compilation from source

Steps to reproduce

Tell us how to reproduce this issue. Ideally, you could paste the code that produces the error:

import pygimli as pg
import numpy as np
import matplotlib.pyplot as plt

mesh = pg.createGrid([1,2,3,4],[1,2,3,4])

x = np.linspace(0,4*np.pi)
y = np.sin(x)

fig, (ax1, ax2) = plt.subplots(2)
pg.show(mesh, ax=ax2)
ax1.plot(x,y)

Expected behavior

Actual behavior