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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def execute(self):
 """ Execute this generator regarding its current configuration. """

        if self.direct:
            if self.file_type == 'pdf':
                raise IOError(u"Direct output mode is not available for PDF "
                               "export")
            else:
                print(self.render().encode(self.encoding))
        else:
            self.write_and_log()

            if self.watch:
                from landslide.watcher import watch

                self.log(u"Watching %s\n" % self.watch_dir)

                watch(self.watch_dir, self.write_and_log)