Editing Python programming (section)

== Python Network Programming ==

=== HOWTO send UTF-8 text strings as text or hexadeciaml ===

<pre>>>> import socket

>>> socket_object = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

>>> socket_object.connect(('192.168.1.109', 1060))

>>> socket_object.send(bytes('Hello There', 'utf-8')) < -- Wireshark shows TCP payload data as 48656c6c6f205468657265
11 < -- number of bytes sent (this means "sent" to operating system network functions, this does NOT MEAN the remote end received these bytes)

>>> socket_object.send(bytes.fromhex('48656C6C6F205468657265')) < -- Wireshark shows TCP payload data as 48656c6c6f205468657265
11 < -- number of bytes sent (this means "sent" to operating system network functions, this does NOT MEAN the remote end received these bytes)

>>> socket_object.close()</pre>

If you have text string data encoded as UTF-8 characters then use bytes(<string>, 'utf-8')

If you have text string data encoded as hexadecimal values (2 hexadecimal characters map to a UTF-8 character) then use bytes.fromhex()

[[My Python Network Programming Notes]]