IMPORTANT: always cprint please, also, if the user supplies incorrect arguments, you should use:
self.core.Error.FrameworkAbort("Please use ./owtf.py -h for the help menu ...")

Example:
https://github.com/owtf/owtf/blob/a34fd0ae6111d1a1dbfcc12ab89e86a985618f16/framework/http/proxy/tor_manager.py#L58