Bad Magic Number

Scripting Issues
1

I created a file updating system. It updated .pycs because I don’t want it to update .EXEs every time and because I don’t want it to be open sourced. But whenever I run the .pyc in the terminal I get

RuntimeError: Bad magic number in .pyc file
Press any key to continue…

2

Forgot to mention this in the post: Anyone that can help?

3

The error is that it’s not sending all the data. For me it perfectly sends other files, but I’m guessing this one is too big (it’s 40 KBs). I am currently sending/recving 1024 bytes… how do I fix this?