Will my encrypted Python script work on Linux and Windows Systems? Yes, it will.
Can I encrypt Python function files/scripts? Yes, you can. Function files (and their corresponding calling script(s)) can be encrypted.
Can I encrypt my Python script AND use PyInstaller to convert it to an executable? Absolutely. Yes, you can. And if you require assistance, we're here to help!
Is there a size limit on the type of Python scripts that can be encrypted? No, there is not.