examples/numpy/array_random.py
from __future__  import print_function
import numpy

a = numpy.random.randn(2, 5)
print(a)

# [[-0.60431655  0.70077623 -0.33759019  0.28666375 -0.82655156]
#  [-1.02792095 -0.92832036  1.37393991  0.08879614 -0.77639661]]

random sampling