def fromHash(code, default=None):
    'Get existing node from MObjectHandle.hashCode()'
    try:
        return Singleton._instances[('%x' % code)]
    except KeyError:
        return default
Get existing node from MObjectHandle.hashCode()
def fromHash(code, default=None):
    
    try:
        return Singleton._instances[('%x' % code)]
    except KeyError:
        return default