Chilkat2-Python

Get an FTP Listing Entry's Last-Modified Time

Demonstrates the Chilkat Ftp2.GetLastModifiedTimeStr method, which returns the last-modified time of a cached directory-listing entry as an RFC 822 date-time string. The only argument is a zero-based index.

Background: The last-modified time is the workhorse timestamp: it updates whenever a file's contents change and is what sync and mirror logic compares to decide whether a file needs re-transferring. It is the most reliably reported of the three across FTP servers, and the RFC 822 string carries a timezone so comparisons are well defined.

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Chilkat2-Python

import sys
import chilkat2

success = False

# Demonstrates the Ftp2.GetLastModifiedTimeStr method, which returns the last-modified time of a
# cached directory-listing entry as an RFC 822 date-time string.  The only argument is a
# zero-based index.

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"

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

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

# GetDirCount retrieves the directory listing on the first call and returns the number of
# entries.  A negative return indicates failure.
n = ftp.GetDirCount()
if (n < 0):
    print(ftp.LastErrorText)
    sys.exit()

for i in range(0,n):
    name = ftp.GetFilename(i)

    # The value is an RFC 822 string such as "Fri, 21 Nov 1997 09:55:06 -0600".
    lastModified = ftp.GetLastModifiedTimeStr(i)
    print(name + "  modified " + lastModified)

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