Python Matplotlib plt.show（）不返回图

Question

I remote login a server using ssh -X ***@remote.arizona.edu (This remote server is a Linux system) and tried to make some plots using Python, I had the following errors:

_tkinter.TclError: no display name and no $DISPLAY environment variable

Then I fixed this error by the adding the commands before I import any matplotlib :

import matplotlib
matplotlib.use('Agg')
matplotlib.matplotlib_fname()

Now it runs well. But the problem is that there is no figure displayed even if I had the command plt.show() . My old computer used Ubuntu 16.04 before, there is no such problem. Now I switched to MacBook Air, then I had this issue. It must be some Mac setting issues. Any thoughts to fix this issue?

Answer 1

You need to install XQuartz on your Macbook. Then make sure the DISPLAY variable in your remote shell is set to your local X server. Now the remote matplotlib should show the figure on your Macbook.