x = numpy.array([[0, 0.1, 0.2], [0.3, 0.4, 0.5], [0.6, 0.7, 0.8]])
y = numpy.array([('%.2f' % w) for w in x.reshape(x.size)])
y = y.reshape(x.shape)
print(y)
Numpy converting array from float to strings