By default, Python 2.6 does not permit to open an FTPS connection (using SSL/TLS) and restricts the use of non secure protocol FTP.
However, it’s possible to get around this lack by using the FTP library available since version 2.7, which is fully compatible and supported with 2.6.
You can get the library directly from official sources or through the link below:
http://www.bggofurther.com/wp-content/uploads/2014/10/ftplib.zip
Once the library copied (you can either replace the existing library or integrate it locally), you can so open an FTPS connection by using the FTP_TLS library. For example:
>>> from ftplib import FTP_TLS
>>> ftp = FTP_TLS('ftp.example.org') # connect to host, default port
>>> ftp.login() # login anonymously before securing control channel
'230 Guest login ok, access restrictions apply.'
>>> ftp.prot_p() # securing data connection explicitly
>>> ftp.cwd('/') # change working directory to the root
>>> ftp.retrlines('LIST') # list directory contents
total 7
drwxr-xr-x 8 ftpuser ftpgroup 1024 Jan 3 2012 .
drwxr-xr-x 8 ftpuser ftpgroup 1024 Jan 3 2012 ..
drwxr-xr-x 2 ftpuser ftpgroup 1024 Oct 7 2013 bin
d-wxrwxr-x 2 ftpuser ftpgroup 1024 Sep 17 2013 etc
drwxr-xr-x 2 ftpuser ftpgroup 1024 Nov 23 2013 lib
drwxr-xr-x 3 ftpuser ftpgroup 1024 Oct 7 2013 usr
-rw-r--r-- 1 ftpuser ftpgroup 312 Aug 18 2013 __init__.py
'226 Transfer complete.'
>>> ftp.quit()
'221 Goodbye.'
You can so maintain your applications running with Python 2.6 and use a secure connection for FTP!