#113 Include the class or module name when some error hapens

[Varun Srivastava]

When some error happens while running epydoc, the error message does not mention the class name or module name where the error occurred. This makes is very difficult to debug the issue when epydoc is run on big source.

For example :
UNEXPECTED ERROR:
_Sentinel instance has no attribute 'len'

Can this be enhanced to include the module/package/class name where the error occurred.