I'm an undergraduate student doing an independent research on trees, and I want to generate trees and plot them. I'm using a sage notebook with the ipynb extension (using my university's remote computer). The following code, which I copied from the sage website is not plotting trees as expected (I originally had my own code with which I was trying to plot, but since it wasn't working I tried to copy some examples from this link). \
from sage.all import *
T = list(graphs.trees(7))
t = T[3]
t.graphplot().plot()
Instead of showing the graphs, it returns "Graphics object consisting of 14 graphics primitives."
I can use other sage functions on the same platform, so I was wondering if anyone have any experience troubleshooting such an error.