v0.2.6 - This fixes #1 -- There was one raise using python 2-only syntax. It's been updated to be compatibile with both python 2 and 3.
Merge pull request #2 from drincruz/bugfix/py3_raise_compatability

bugfix: raise syntax not compatible with python 3
Fixing problem with description construction on
OperandWrapper.__getitem__ for non-string keys.
Fixes #8.
Fixes #7.
Fixes #6.