ftype command with .py file and python.exe does not work

Question

I have python installed on a school computer, but whenever I reboot, it of course loses the file associations and such. I have been building a batch file to try help me work around this problem, but I am stuck on the ftype command.

assoc .py=PythonFile
ftype PythonFile="H:\profile\programs\Python34\python.exe" "%1" "%*"

something is going wrong, because when I open a python file I get the error: H:\\profile\\programs\\Python34\\python.exe: can't find '__main__' module in '' I dont understand this. I tried %0 in the ftype command but I think it associated python file with the batch file itself, because when I ran any python file, I got

  File "init.cmd", line 1
    @echo off
            ^
SyntaxError: invalid syntax

by the way, I read this answer. it didnt help. Simple ftype command not working

(if there is an alternative in powershell, I am open! :) thank you in advance!
happy holidays!

Answer 1

The % character has special meaning inside batch files, so you need to "escape" them by using double %% :

@echo off
assoc .py=PythonFile
ftype PythonFile="H:\profile\programs\Python34\python.exe" "%%1" "%%*"