a loop in python

The view command in PLAXIS Input returns the port number that is assigned to the PLAXIS Output program.

You would need to setup the new Output server with the right port.
Something like this:

from plxscripting.easy import *

plaxis_password = 'yourpassword'

# [... YOUR CODE ...]

phase_input = g_i.Phase_27
output_port = g_i.view(phase_input)
s_o, g_o = new_server('localhost', output_port, password=plaxis_password)
phase_output = get_equivalent(phase_input, g_o)  # to get the phase object in Output
value = g_o.getsingleresult(phase_output, g_o.ResultTypes.EmbeddedBeam.Utot, 7.5, 1)  # embedded beam row changed to embedded beam in V22

# finally, close the Output instance:
g_o.close()

thank you! Micha. 

This problem has been solved. Thank you for your reply！