import pysftp
import os

cnopts = pysftp.CnOpts()
cnopts.hostkeys = None

host = 'somehost'
port = 22
user = 'someuser'
password ='samplepass'

with pysftp.Connection(
        host=host,
        port=port,
        username=user,
        password=password,
        cnopts=cnopts
) as sftp:
    sftp_client = sftp
    path = 'root_folder'
    file_list_attr = sftp.listdir_attr(remotepath=path)
    file_stat = sftp.stat(os.path.join(path, 'file.txt'))