Chilkat2-Python

Capture the FTP Session Log

Demonstrates the SessionLog property (with KeepSessionLog), which holds the in-memory FTP protocol conversation — commands and server replies — collected during the session.

Background: When an FTP operation fails for a non-obvious reason, the exact command/reply exchange is the most useful diagnostic there is, and SessionLog captures it verbatim once KeepSessionLog is enabled. Passwords are omitted, so it is safe to log or attach to a bug report. Over a long session it grows without bound; clear it with ClearSessionLog to bound memory or to isolate the log for one operation.

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import sys
import chilkat2

success = False

ftp = chilkat2.Ftp2()

ftp.Hostname = "ftp.example.com"
ftp.Username = "myFtpLogin"

# Normally you would not hard-code the password in source.  You should instead obtain it
# from an interactive prompt, environment variable, or a secrets vault.
ftp.Password = "myPassword"

# Keep an in-memory log of the FTP protocol conversation for troubleshooting.  Passwords are
# not recorded in it.
ftp.KeepSessionLog = True

success = ftp.Connect()
if (success == False):
    print(ftp.LastErrorText)
    sys.exit()

success = ftp.ChangeRemoteDir("public_html")
if (success == False):
    print(ftp.LastErrorText)
    sys.exit()

# The SessionLog contains the protocol commands and server replies collected so far.
print(ftp.SessionLog)

success = ftp.Disconnect()
if (success == False):
    print(ftp.LastErrorText)
    sys.exit()