class GSL_Error(Exception): pass class TooManyErrors(GSL_Error): pass class HadReportedError(GSL_Error): pass class ReportedError(GSL_Error): pass class UndefinedError(ReportedError): pass class DuplicateError(ReportedError): pass class CompositionError(GSL_Error): pass class CoverageError(ReportedError): pass class ConditionError(GSL_Error): pass