[Python] bytes-like object is required not 'CompletedProcess'

Question

I got this Error from a python code I was using the subprocess module here's the error
TypeError: bytes-like object is required not 'CompletedProcess'
why this error message appears ?
Note: I can't show the original code for security and privacy reasons

Answer 1

@Gordie thanks have a nice day sir :)

Answer 2

@Gordie this is not the error I tried to search but all I found is about then one that you gave a link for it but mine isn't like that I will try to make it a little more clear
I'm trying to send shell commands between sockets to create a control panel