Sets the plugin path for this class to the given path.  The inputted
        pluginpath value can either be a list of strings, or a string
        containing paths separated by the OS specific path separator (':' on
        Mac & Linux, ';' on Windows)
        
        :param      pluginpath | [<str>, ..] || <str>

def setPluginPath(cls, pluginpath):
        """
        Sets the plugin path for this class to the given path.  The inputted
        pluginpath value can either be a list of strings, or a string
        containing paths separated by the OS specific path separator (':' on
        Mac & Linux, ';' on Windows)
        
        :param      pluginpath | [<str>, ..] || <str>
        """
        setattr(cls, '_%s__pluginpath' % cls.__name__, None)
        cls.addPluginPath(pluginpath)