When Python 2 and 3 are installed, Mayavi wont work

[Hendrik410]

I have encountered the following problem:
I have a system on which python 2 and 3 are both installed, but python3 is the default runtime (python links to python 3).

FiPy is installed for python2, so is mayavi. The problem is, that the lines, that loads the mayaviDeamon.py file (mayaviClient.py line 71 to 81) uses the default python interpreter.

from pkg_resources import Requirement, resource_filename
daemon_file = (daemon_file or resource_filename(Requirement.parse("FiPy"),
                                            "fipy/viewers/mayaviViewer/mayaviDaemon.py"))

cmd = ["python",  daemon_file,  "--lock", self.vtklockfname, "--fps", str(self.fps)]

I managed to overcome this problem by changing the first element of this list with python2.
I think the correct way to do it, is to use sys.executable to get the current interpreter.