Sometimes servers are down, so clients cannot connect to them. Python raises an exception of type ConnectionRefusedError in a client program when a network connection is refused. You can generate this error by running the timeclient.py file. Add exception handling code to the server logic in timeclient.py to catch and recover from this kind of exception. To recover from this exception, simply print the message Error connecting to the server and terminate the program. This lab follows a client server model. In order for the client program to connect to the server the following steps must be taken: Enter python3 timeserver.py into the first Terminal. Open a new terminal tab by clicking the '+' at the top of the terminal pane. Enter python3 timeclient.py into the second Terminal. The client code will now be able to establish a connection to the server. In order to test your error handling logic, run python3 timeclient.py into the terminal without starting the timesever. If you have already started the timeserver, use CTL+C to terminate the process or close the terminal window which is running the timeserver. """ File: timeclient.py Project 10.2 Client for obtaining the day and time. Recovers from connection errors. """ from socket import * from codecs import decode HOST = "localhost" PORT = 5000 BUFSIZE = 1024 ADDRESS = (HOST, PORT) server = socket(AF_INET, SOCK_STREAM) # Create a socket server.connect(ADDRESS) # Connect it to a host dayAndTime = decode(server.recv(BUFSIZE), "ascii") # Read a string from it print(dayAndTime) server.close()

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Question

Sometimes servers are down, so clients cannot connect to them. Python raises an exception of type ConnectionRefusedError in a client program when a network connection is refused.

You can generate this error by running the timeclient.py file.

Add exception handling code to the server logic in timeclient.py to catch and recover from this kind of exception. To recover from this exception, simply print the message Error connecting to the server and terminate the program.

This lab follows a client server model. In order for the client program to connect to the server the following steps must be taken:

Enter python3 timeserver.py into the first Terminal.
Open a new terminal tab by clicking the '+' at the top of the terminal pane.
Enter python3 timeclient.py into the second Terminal.

The client code will now be able to establish a connection to the server.

In order to test your error handling logic, run python3 timeclient.py into the terminal without starting the timesever. If you have already started the timeserver, use CTL+C to terminate the process or close the terminal window which is running the timeserver.

"""

File: timeclient.py

Project 10.2

Client for obtaining the day and time. Recovers from connection

errors.

"""

from socket import *

from codecs import decode

HOST = "localhost"

PORT = 5000

BUFSIZE = 1024

ADDRESS = (HOST, PORT)

server = socket(AF_INET, SOCK_STREAM) # Create a socket

server.connect(ADDRESS) # Connect it to a host

dayAndTime = decode(server.recv(BUFSIZE), "ascii") # Read a string from it

print(dayAndTime)

server.close()

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 8 steps with 5 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions