Dear Python experts among the NEST Users!

I just notice a strange interaction between NEST and Ipython. In a freshly started Ipython, I execute the following three statements

import nest

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

n

The last one takes extraordinarily long, over 10 seconds, I think. But if I instead do

print(n)

it executes instantaneously.

Also, if I do the same thing in python directly, just entering

n

shows the NodeCollection immediately.

Can anyone reproduce this and does anyone have an idea what might be going on?

I am on macOS 14.3.1 with Python 3.12.2, Ipython 8.22.2, and have checked with NEST 3.6 and a branch of recent master.

Best,

Hans Ekkehard