I am prototyping a socks5 proxy in Python, I want to get the port number from the connection. I can do it like this with struct.unpack

port = struct.unpack('!H', b'x00P')[0]
print(port) # 80

according to the documentation H format is for unsigned short. I wonder is there any way I could convert that byte to unsigned short without using the struct.unpack. Because I am just prototyping in python but I have to use some other language to build it, I don’t know if the struct.unpack will exist in other languages.

Is there any way I could destructure that byte without using any python only modules?

Source: Python Questions