import socket

HOST = 'localhost'

PORT = 53091

write_index = 0

with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:

try:

s.connect((HOST, PORT))

except OSError as err:

print("Client socket failed to open with error: {0}".format(err))

while write_index < 10:

string = "Writing data at index: {0} ".format(write_index)

s.sendall(str.encode(string))

# Block and write up to 512 bytes to the write buffer.

data = s.recv(512)

# Using bpo-32373, check to see if this socket is blocking.

if s.getblocking():

print("(Blocking socket) " + data.decode())

else:

print("(Non-blocking socket) " + data.decode())

write_index += 1

# Close the socket, but wait.... is it really closed???

s.close()

# Just to make sure (bpo-32454), send data to validate that the

# socket is closed.

try:

s.sendall(str.encode('closed'))

print("Client socket remains open")

except OSError as err:

print("Client socket is closed with error: {0}".format(err))