FTP Directory Listing with ftplib - Python

from ftplib import FTP

ftp = FTP('ftp.fi.debian.org')

print("FTP RootDir Listing")
print("Logging in.")

ftp.login()

print(ftp.retrlines('LIST'))

print('Closing FTP Connection')
ftp.close()

Here's a detailed explanation of the code:

1. The code begins by importing the FTP module from the ftplib library, which provides a range of functions for working with FTP servers.
2. The next line creates an FTP object and connects it to the server located at "ftp.fi.debian.org". This establishes a connection to the server so that we can send commands to it.
3. The code then prints a message to indicate that the FTP root directory is being listed.
4. A call to the login method is made to authenticate the user on the FTP server.
5. The retrlines method is used to retrieve a listing of the files and directories in the root directory of the FTP server. This method sends the "LIST" command to the server and prints the response to the console.
6. Finally, the FTP connection is closed using the close method.

Overall, this code retrieves a list of files and directories from an FTP server using Python's built-in FTP functionality.