The standard python version of ubuntu 13.04 is python 2.7. I know that I can call a python script of version 3.3 by calling python3.3 or python3 in terminal instead of only "python", which starts the version 2.7...
e.g. python3 myscript.py
But now I have a version 3.3. script in the system start routine and can only tell the path to the file. The system recognizes it as a python script (in the shebang with #!/usr/bin/python3) But how to open it with the correct version? It is tried to be opened with the standard python install so it wont work nor even show up.