Basic TCP to Pioneer VSX-1021 Stereo Receiver

[sparkz_alot]

VSXCommand = raw_input("PO")

The 'raw_input' is a dead give away that the code was written in Python 2.x. As a new programmer, you should be using the latest version, which is currently 3.6.3. In the code you supplied, you'd only need to change  VSXCommand = raw_input("PO") to  VSXCommand = input("PO") .

By the way, here is the link to the docs: telnetlib (for version 3)