Description
Plotting an array with units causes matplotlib to go into an infinite recursion.
A workaround is to plot without units, using any of these three options, shown for a StateMonitor:
plot(mon.t_, mon.v_) # unitless values
plot(mon.t/ms, mon.v/mV) # divide by units
plot(np.asarray(mon.t), np.asarray(mon.v)) # explicit conversion to numpy array