import numpy
numpy.savetxt('train_x.csv', train_x, delimiter = ',')
train_x.csv = numpy.loadtxt(open("train_x.csv","rb"),delimiter=",",skiprows=0)
import numpy
numpy.savetxt('train_x.csv', train_x, delimiter = ',')
train_x.csv = numpy.loadtxt(open("train_x.csv","rb"),delimiter=",",skiprows=0)