nsent = dest.send(view) view = view[nsent:] def recv_into( arr, source): view = memoryview(arr).cast('B') while len(view): nrecv = source.recv_into(view) view = view[nrecv:] #server from socket import * s = socket(AF_INET, SOCK_STREAM) s.bind( ('', 25000)) s.listen(1) c, a = s.accept() #after client connected import numpy a = numpy.arange(0.0, 50000000.0) send_from(a, c) #client from socket import * c = socket(AF_INET, SOCK_STREAM) c.connect( ('localhost', 25000)) import numpy a = numpy.zeros( shape = 50000000, dtype = float)