How To Work With Tcp Sockets In Python By: Appdeveloper
A network/internet socket is an end-point of interposing communication across a computer network. In Python web development, the library has a module called socket which offers a low-level networking interface, it's common across various app development programming languages since it uses OS-level system calls. When you create a socket, use a function called a socket. It accepts family, type, and prototype arguments. Creating a TCP-socket, for the family, you must use a socket.AF_INET or socket.AF_INET6 and for the type you must use socket.SOCK_STREAM.
Example for Python socket
import socket
s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
Main methods to create Python socket objects
• bind() – specific for server sockets.
• listen() – specific for server sockets.
• accept() – specific for server sockets.
• connect() – client sockets.
• send() – both server and client sockets.
• recv() – both server and client sockets.
For instance, echo server from documentation
import socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((‘localhost', 50000))
s.listen(1)
conn, addr = s.accept()
while 1:
data = conn.recv(1024)
if not data:
break
conn.sendall(data)
conn.close()
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