convert init.d to systemd, how to determine which python is installed

[Toshio Kuratomi]

On Thu, Nov 03, 2011 at 10:10:03AM -0400, Kaleb S. KEITHLEY wrote:
> HekaFS runs a daemon from init. It's a Bottle (python-based) http server.
> 
> In order to work on, e.g. RHEL6 in addition to Fedora, the old init 
> script has:
> ...
> vercmd="from distutils.sysconfig import get_python_lib; print 
> get_python_lib()"
> py_dir=$(python -c "${vercmd}")
> exe="${py_dir}/hekafsd.py"
> ...
> 
> I'd kinda like to preserve that in some fashion in the new systemd 
> service file. Not to run on RHEL6 obviously, but to be future-proof 
> against the day when python2.8 or python3.x ships in F17 or later or 
> RHEL7, e.g.
> 
> I read the various systemd.{unit,service,exec} man pages and also tried 
> to find the conversion guide that was mentioned here a while back. 
> Didn't see anything that looked suitable. Did I overlook something?
> 
A wrapper script that does this would be one method.

If I understand how hekafsd is structured, another might be to run::
   python -m hekafsd

-Toshio
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