cat SomePythonScript.py | ssh remote_machine 'cat - | python'

from subprocess import  PIPE , Popen

p1 = Popen(["cat ", "SomePythonScript.py"], stdout=PIPE)
p2 = Popen(["remote_machine"], stdin=p1.stdout, stdout=PIPE)
p3 = Popen(["cat -", "python"], stdin=p2.stdout, stdout=PIPE)

p1.stdout.close()
p2.stdout.close()

output = p3.communicate()[0]

from  subprocess import PIPE , Popen
p1 = Popen([["cat", "SomePythonScript.py"], stdout=PIPE)
p2 = Popen(["remote_machine","cat", "- python"], stdin=p1.stdout,    stdout=PIPE)
p1.stdout.close()
output = p2.communicate()[0]

from subprocess import  PIPE , Popen

p1 = Popen(["cat", "SomePythonScript.py"], stdout=PIPE)
p2 = Popen(["ssh", "remote_machine", "cat - | python"], stdin=p1.stdout, stdout=PIPE)

p1.stdout.close()

output = p2.communicate()[0]