Except and properly handle Errors in view decorator
After the next release we can remove all try/except combinations that
are not customized and leave the handling of those exceptions to the
view decorator.
Patch by: Sverre Rabbelier
Coverage: code coverage testing for Python
Coverage.py is a Python module that measures code coverage during test execution.
It uses the code analysis tools and tracing hooks provided in the Python standard
library to determine which lines are executable, and which have been executed.
For more information, see http://nedbatchelder.com/code/modules/coverage.html