Slurm integration python2/3 confusion

[jabl]

The slurm integration scripts in plugins/SLURM-Integration are launched via the ufm-{prolog,epilog}.sh scripts which launch them by running python3. However the python scripts themselves contain the shebang path /usr/bin/python, which depending on the system setup, can still point to the old python 2.x interpreter. Can you please fix so that python 2.x is not used by accident e.g. when testing?

ufm_sdk_3.0/plugins/SLURM-Integration$ git grep usr/bin/python
ufm_slurm_base.py:#!/usr/bin/python
ufm_slurm_epilog.py:#!/usr/bin/python
ufm_slurm_prolog.py:#!/usr/bin/python
ufm_slurm_utils.py:#!/usr/bin/python

[flx42]

I agree with the assessment of @jabl, can we fix this please? In addition, python files that are not meant to be executed directly should probably not be executable (like ufm_slurm_utils.py), nor have a shebang at all (ufm_slurm_base.py and ufm_slurm_utils.py).

@anasbadaha @mike-dubman