I have an assignment - to create a keylogger

[MartyXO]

Okay. Error:

Error:
Error: TypeError: KeyboardSwitch() missing 8 required positional arguments: 'msg', 'vk_
code', 'scan_code', 'ascii', 'flags', 'time', 'hwnd', and 'win_name'

Error solved, how?
I have both (py 3 and py 2) I uninstall python3 - then python 2 does not works, I run uninstall and click to Repair - then python 2.7 does works and then shows new problem.

Now I have problem, If I run it on my PC, keylogger does not write keystrokes to my .txt file.
line 28:

global file

edited to:

global filename

Where is problem?