import numpy as np

rec = np.recarray(1, dtype=[('x', float, 5)])

# Bug behaviour
rec[0].x = 1
print rec[0] # should print: (array([ 1.,  1.,  1.,  1.,  1.]),)
             # but prints uninitialized float values

# Correct behaviour
rec.x = 2
print rec[0] # prints: (array([ 2.,  2.,  2.,  2.,  2.]),)