def setUp(self):
        # create structure
        ftp = ftplib.FTP(HOST, USER, PWD)
        ftp.cwd('/')
        ftp.mkd('test')
        ftp.cwd('test')
        ftp.mkd('hola')
        ftp.cwd('hola')
        f2 = StringIO(FILE2)
        ftp.storbinary('STOR file2', f2)     # send the file
        f3 = StringIO(FILE3)
        ftp.storbinary('STOR file3', f3)     # send the file
        ftp.cwd('..')
        f1 = StringIO(FILE1)
        ftp.storbinary('STOR file1', f1)     # send the file
        ftp.close()
Creates structure
dataset/ETHPy150Open spotify/luigi/test/_test_ftp.py/TestFTPFilesystem.setUp