Displaying NodeCollection is very slow in IPython

[heplesser]

Running the following in IPython

import nest
n = nest.Create('parrot_neuron', positions=nest.spatial.free([(x, 0) for x in range(10000)]))
n

the last line takes extraordinarily long, over 10 seconds, I think. But if one instead does

print(n)

it executes instantaneously.

Also, executing the same code in plain python, the Node collection is displayed immediately.