Creating a Simple FTP Server and Client using Python: A Step-by-Step

In this blog post, we will be discussing how to create a simple FTP server and client using the Python libraries pyftpdlib and ftplib. FTP, or File Transfer Protocol, is a standard protocol for transferring files between computers on a network. We will go through the process step by step, with code examples to make it easier for you to understand.

To get started, we will first need to install the pyftpdlib library. This can be done by running the following command in your command prompt: pip install pyftpdlib. Once the library is installed, we can begin by importing it in our Python script.

from pyftpdlib.authorizers import DummyAuthorizer
from pyftpdlib.handlers import FTPHandler
from pyftpdlib.servers import FTPServer

Next, we will set up the FTP server using the FTPd class from the pyftpdlib library. This class allows us to define the host and port for our server, as well as set up authentication for users who wish to connect to the server.

authorizer = DummyAuthorizer()
authorizer.add_user("user", "password", ".", perm="elradfmw")
authorizer.add_anonymous(".", perm="elradfmw")

handler = FTPHandler
handler.authorizer = authorizer

server = FTPServer(("127.0.0.1", 21), handler)
server.serve_forever()

After setting up the server, we can move on to creating the client. For this, we will be using the ftplib library, which provides a set of functions for interacting with FTP servers. In our client script, we will need to import the ftplib library and use the FTP class to connect to the server.

from ftplib import FTP

ftp = FTP()
ftp.connect("127.0.0.1", 21)
ftp.login("user", "password")

Once connected, we can use various ftplib functions to perform actions such as uploading and downloading files.

ftp.cwd("/")
ftp.retrbinary("RETR " + "file.txt", open("file.txt", "wb").write)
ftp.storbinary("STOR " + "file.txt", open("file.txt", "rb"))
ftp.quit()

In this blog post, we have covered the basics of creating a simple FTP server and client using Python, with code examples. By following the steps outlined in this post, you should be able to set up your own FTP server and client in no time.

Creating a Simple FTP Server and Client using Python: A Step-by-Step Guide.