def upload_files(self):
        files = os.listdir(self.input_file)
        
        with progressbar.ProgressBar(max_value=len(files)) as bar:
            for indice, file in enumerate(files):
                pathFile = self.input_file+file
                keyFile =  self.output + file
                self._S3.meta.client.upload_file(pathFile, self.bucket, keyFile)
                bar.update(indice+1)