exception documentation

Base class for Sphinx errors. This is the base class for "nice" exceptions. When such an exception is raised, Sphinx will abort the build and present the exception category and message to the user. Extensions are encouraged to derive from this exception for their custom errors. Exceptions *not* derived from :exc:`SphinxError` are treated as unexpected and shown to the user with a part of the traceback (and the full traceback saved in a temporary file). .. attribute:: category Description of the exception "category", used in converting the exception to a string ("category: message"). Should be set accordingly in subclasses.

Class Variable category Undocumented