python - Trying to connect to FTP site but getting wrong SSL version number error? -

i using python 2.7. established connection ftp site using port 990. however, there un update site need switch port 22. changed port number 990 22. however, after did got error:

[ssl: wrong_version_number] wrong version number (_ssl.c:661) 

i have tried checking other similar posts suggest appending https:// site. i'm using ftp , not url not possibility me. have tried changing ssl_version ssl.protocol_sslv23 following error:

[ssl: unknown_protocol] unknown protocol (_ssl.c:661) 

here full code provided. know issue is? help.

from ftplib import ftp_tls import socket import ssl  class tyftp(ftp_tls):     def __init__(self, host='', user='', passwd='', acct='', keyfile=none, certfile=none, context=none, timeout=60):         ftp_tls.__init__(self, host, user, passwd, acct, keyfile, certfile, context, timeout)     def connect(self, host='', port=0, timeout=-999):         if host != '':             self.host = host         if port > 0:             self.port = port         if timeout != -999:             self.timeout = timeout          try:              self.sock = socket.create_connection((self.host, self.port), self.timeout)             self.af = self.sock.family             self.sock = ssl.wrap_socket(self.sock, self.keyfile, self.certfile, ssl_version=ssl.protocol_tlsv1)             # self.sock = ssl.wrap_socket(self.sock, self.keyfile, self.certfile, ssl_version=ssl.protocol_sslv23)             self.file = self.sock.makefile('rb')             self.welcome = self.getresp()         except exception e:             print e      return self.welcome  ftp_site = "sftp.mysite.com"  upload = {     "username": "username",     "password": "password" }  download = {     "username": "username",     "password": "password" }  server = tyftp() # changed 990. 990 works no issues. server.connect(host=ftp_site, port=22) 

990 port implicit ftps while 22 port ssh , sftp. guess did not switch port switched ftps (ftp on ssl) sftp (file transfer on ssh). suggests hostname use: sftp.mysite.com.

ftps , sftp different protocols , can not use code implementing ftps connect sftp server. libraries supporting sftp in python see google search.