Created on 14 Dec 2018
@author: jmht
Check if an executable exists
fpath (str) – The path to the executable
bool
Make a work directory rooted at run_dir and return its path
dir_name_stem (str) – name to use as stem of working directory name
work_dir – The path to the working directory
str
Should replace with pyjob
Always set PYTHONPATH to null so processes don’t inherit our environment This needs some thinking about