Message9509

import socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM )
sz = s.recv(4, 256)   

You get:
Traceback (most recent call last):
  File "/tmp/sock_test.jy", line 6, in <module>
    sz = s.recv(4, 256)
TypeError: recv() takes exactly 2 arguments (3 given)  

I also tried 
  sz = s.recv(4, flags=256)
which changed the exception to:
TypeError: recv() got an unexpected keyword argument 'flags'

Also, the flags parameter I am trying to use is socket.MSG_WAITALL
but, socket does not define that attribute.