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echo_server.py
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echo_server.py
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# -*- coding: utf-8 -*-
"""
Created on Fri Dec 15 12:46:44 2017
@author: Brian
"""
import socket
import sys
import json
class ServerClass(object):
def __init__(self):
# Create a TCP/IP socket
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# Bind the socket to the port
server_address = ('localhost', 10000)
print('starting up on %s port %s' % server_address)
sock.bind(server_address)
# Listen for incoming connections
sock.listen(1)
while True:
# Wait for a connection
print('waiting for a connection')
connection, client_address = sock.accept()
try:
print('connection from', client_address)
# Receive the data in small chunks and retransmit it
while True:
data = connection.recv(4096)
print('received "%s"' % data)
if data:
print(data.decode())
data = json.loads(data.decode().replace("'","\""))
func = getattr(self, data['fxn'])
out = func(data['x'], data['y'])
print('output calculated, sending back to the client')
connection.sendall(str(out).encode())
else:
print('no more data from', client_address)
break
finally:
# Clean up the connection
connection.close()
def add(self,x,y):
return x+y
def mult(self,x,y):
return x*y
if __name__ == "__main__":
ServerClass()