Tcp server python

Question

so, i bought a book to learn python.then i write the exactly same the code what that book said.here the code.
https://code.sololearn.com/cZDdvAxhGCQy/?ref=app

the book said,its using python 2.7.but i tried both 2.7 and 3.5.none of them working.whats wrong?

Answer 1

On line 9, try passing a tuple instead of 2 arguments, like this:

server.bind( (bind_ip, bind_port) )

Answer 2

They are string format symbols. When you start your program, instead of %s it prints a string and instead of %d it prints an integer number

print("ip address: %s, port number: %d" % ("127.0.0.1", 80))

will print:
ip address: 127.0.0.1, port number: 80

Answer 3

Thanks, but I am not. Everyone can learn these things, just need to study a lot

Answer 4

and can u e explain me what is the mean %s :%d ?

Answer 5

bravo.ur genius