Use Python for Socket Programming to connect two or more PCs to share a text file.

Problem Statement:

Use Python for Socket Programming to connect two or more PCs to share a text file.

PROGRAM

serverm.py

import socket
import threading


#works for 5 times client trying to connect to it.After 5 clients have accessed it, server stops.
class sc(threading.Thread):
    def __init__(self):
        threading.Thread.__init__(self)
    def run(self):
        threadlock.acquire()
        ch=client.recv(1111)           #RECEIVE choice entered by client

        if ch=='1':                     #client is writing to the server file, temp.txt
            f=open('temp.txt','a+')
            r=client.recv(4096)
            f.write(r+'\n')
            f.close()
        else:
            f=open('temp.txt','a+')      #sending file data to the client from server file.
            msg=f.read()
            client.send(msg)
            f.close()
        threadlock.release()
threadlock=threading.Lock()
s=socket.socket()
s.bind(('localhost',9998))
s.listen(5)                              #5 is the mac number of connections that can be queued for this process
for i in range (0,5):
    client,client_addr=s.accept()
    s1=sc()
    s1.start()
    s1.join()
client.close()
s.close()

clientm.py

import socket

c=socket.socket()

c.connect(("localhost",9998))

ch=raw_input("Enter choice: 1 Write  2 Read\n")

c.send(ch)

if ch=='1':

    print "Writing to the file...\n"

    msg=raw_input("-->")

    c.send(msg)

else:

    print("file contents are...\n")

    msg=c.recv(4096)

    client_file=open('temp_copy.txt','w+')

    client_file.write(msg+'\n')

    client_file.close()

    print(msg)

c.close()