* Fixing error exception handling for python. Does not need to be compatible with Python2.4 b/c boto is Python 2.6 and above.
* Fixing error exception handling for python. Does not need to be compatible with Python2.4 b/c boto is Python 2.6 and above.
* Fixing compile time errors IRT error exception handling for Python 3.5.
This does not need to be compatible with Python2.4 b/c Boto is Python 2.6 and above.
If an EC2 instance is already associated with an EIP address, we use
that, rather than allocating a new EIP address and associating it with
that.
Fixes#35.
- removed import of sys module.
- HAS_BOTO constant to check if import was successful.
- trigger a failure when import fails.
- removed unnecessary imports.