illumos gate

I can see the dependency for test-runner, but pyzfs should be ok..

bloody% pkgtree -U dependants python-27
| pkg://omnios/system/test/testrunner@0.5.11-151031.0:20190723T232757Z
|------(    require)--pkg://omnios/runtime/python-27@2.7.16-151031.0

bloody% head -1 /usr/lib/zfs/pyzfs.py
#!/usr/bin/python3.5 -S

This piece is fixed in illumos-omnios.

Testing done (as submitted in the RTI mail):

1) Built gate with BUILDPY2='#'
- pyzfs.py and /opt/test-runner/bin/run have python3.5 shebang
- /opt/util-tests/bin/utiltest passes (when /opt/util-tests/runfiles/openindiana.run symlink to default.run is created)
- the following commands
/usr/lib/zfs/pyzfs.py allow user mount rpool/export/home/userhome
/usr/lib/zfs/pyzfs.py allow rpool/export/home/userhome
/usr/lib/zfs/pyzfs.py unallow user mount rpool/export/home/userhome
work
- Run the following with Python 3.5
import libbe_py as be
be.beCopy('test', 'illumos-py3',None, None, {'ru.rsu.cc:test':'value'})

New BE is created, zfs dataset has ru.rsu.cc:test property set to value.

2) Built gate with unset BUILDPY2, BUILDPY3
- pyzfs.py and /opt/test-runner/bin/run have python2.7 shebang
- /opt/util-tests/bin/utiltest passes (when /opt/util-tests/runfiles/openindiana.run symlink to default.run is created)
- the following commands
/usr/lib/zfs/pyzfs.py allow user mount rpool/export/home/userhome
/usr/lib/zfs/pyzfs.py allow rpool/export/home/userhome
/usr/lib/zfs/pyzfs.py unallow user mount rpool/export/home/userhome
work
- Run the following with Python 2.7
import libbe_py as be
be.beCopy('test2', 'illumos-py3',None, None, {'ru.rsu.cc:test2':'value2'})

New BE is created, zfs dataset has ru.rsu.cc:test2 property set to value2.