fix shell invocation
Revert "fix shell invocation"

This reverts commit 1d67f166b54e0d8df1f0f4e76ec25d677ab6b18c.
support for exception.get_type()
added property
Merge branch 'devel' into feature/scp
Merge branch 'devel' into feature/scp
fix after test merge from devel -- still needs testing on Mac