This is not in a `jupyter` notebook so this is not a [duplicate of this question](https://stackoverflow.com/questions/37365357/when-i-use-matplotlib-in-jupyter-notebook-it-always-raise-matplotlib-is-curren), but my code is:

```
from gluoncv import model_zoo, data, utils
from matplotlib import pyplot as plt

...
plt.show()

```

The error I'm getting is:

```
/figure.py:445: UserWarning: Matplotlib is currently using ps, which is a non-GUI backend, so cannot show the figure.
  % get_backend())

```

I created a repl at <https://repl.it/@shamoons/WelloffHarmfulMineral>

If it matters, I'm using OS X. What do I need to do to get the image to show?