How to fix pysftp connection error?

Question

Python

Hello. Faced a problem connecting to the server. I’m generally in this thread for the first time, so I don’t understand why I can’t connect, it seems that I entered all the data. Google realized that you need to get the key, got the key in putigen. But absolutely nothing.

Here is the code

import pysftp
from base64 import decodebytes
import paramiko

# cnopts = pysftp.CnOpts()

# cnopts.hostkeys = None

cnopts = pysftp.CnOpts(knownhosts='ssh-rsa 2048 SHA256:PEFk7nDBYtqlmNC4VIA8qSx/ii2Gn9T5NuVKHRLM72s')

srv = pysftp.Connection(host="193.34.144.226", username="root", password="**********", cnopts = cnopts)

data = srv.listdir()

srv.close()

for i in data:
    print(i)

Here is the error

C:\Users\futgi\AppData\Local\Programs\Python\Python39\lib\site-packages\pysftp\__init__.py:61: UserWarning: Failed to load HostKeys from 193.34.144.226 ssh-rsa 2048 SHA256:PEFk7nDBYtqlmNC4VIA8qSx/ii2Gn9T5NuVKHRLM72s. You will need to explicitly load HostKeys (cnopts.hostkeys.load(filename)) or disableHostKey checking (cnopts.hostkeys = None).
warnings.warn(wmsg, UserWarning)
Traceback (most recent call last):
File "D:\python\FREELANCE\qa_parser\answers_parser\server_requests.py", line 11, in
srv = pysftp.Connection(host="193.34.144.226", username="root", password="*********", cnopts = cnopts)
File "C:\Users\futgi\AppData\Local\Programs\Python\Python39\lib\site-packages\pysftp\__init__.py", line 132, in __init__
self._tconnect['hostkey'] = self._cnopts.get_hostkey(host)
File "C:\Users\futgi\AppData\Local\Programs\Python\Python39\lib\site-packages\pysftp\__init__.py", line 71, in get_hostkey
raise SSHException("No hostkey for host %s found." % host)
paramiko.ssh_exception.SSHException: No hostkey for host 193.34.144.226 found.
Exception ignored in:
Traceback (most recent call last):
File "C:\Users\futgi\AppData\Local\Programs\Python\Python39\lib\site-packages\pysftp\__init__.py", line 1013, in __del__
self.close()
File "C:\Users\futgi\AppData\Local\Programs\Python\Python39\lib\site-packages\pysftp\__init__.py", line 784, in close
if self._sftp_live:
AttributeError: 'Connection' object has no attribute '_sftp_live'

Answer 1

Port not specified:

...
cnopts = pysftp.CnOpts()
    cnopts.hostkeys = None  # disable host key checking.

    # Connection to external SFTP server
    with pysftp.Connection(host=SFTP_HOST,
                           port=SFTP_PORT,
                           username=SFTP_USER,
                           password=fernet_decrypt(fernet_key=SFTP_KEY, encoded=SFTP_PASS_ENC),
                           cnopts=cnopts,
                           ) as sftp:

        # Change external directory
        with sftp.cd(EXTERNAL_DIR):
            external_dir = sftp.listdir()
...