Question

I cannot find out what this line is doing:
p = struct.pack(">b", x)+p[1:]

can you help me on this? I think it is placing sth at the end of the struct. Is is also possible to place sth in the middle of that struct? Things like: p = struct.pack(">b", x)+p[2:] don’t seem to help. Any ideas on this?

Regards

Answer 1

It replaces the first byte of p with a byte representing the value of x. You may or may not have already read this, but here is the documentation for the struct module.

Edit: To replace the second byte, try this:

p = p[:1] + struct.pack(">b", x) + p[2:]