Top-level exception class

Classes
		Exception PySnmpError PySnmpVersionError   class PySnmpError(Exception)       Methods defined here: __init__(self, why='') __nonzero__(self) __repr__(self) __str__(self) Methods inherited from Exception: __getitem__(...)   class PySnmpVersionError(PySnmpError)       Method resolution order: PySnmpVersionError PySnmpError Exception Methods inherited from PySnmpError: __init__(self, why='') __nonzero__(self) __repr__(self) __str__(self) Methods inherited from Exception: __getitem__(...)