📜  ftplib tqdm - Python (1)

📅  最后修改于: 2023-12-03 15:15:12.282000             🧑  作者: Mango

ftplib tqdm - Python

Introduction

ftplib tqdm is a Python module that provides an easy-to-use interface for uploading and downloading files using the FTP protocol. tqdm, on the other hand, is a Python library for adding progress bars to iterables. When used together, these two libraries can make file transfers via FTP more interesting and informative by displaying a progress bar.

Usage

To use ftplib tqdm, you first need to install both libraries using pip. You can do this by running the following command in your terminal:

pip install ftplib tqdm

Once you have installed the libraries, you can use the following code to download a file via FTP using ftplib tqdm:

import ftplib
from tqdm import tqdm

login = ('ftp.example.com', 'username', 'password')
filename = 'example.zip'
ftp = ftplib.FTP(login[0])
ftp.login(login[1], login[2])
filesize = ftp.size(filename)

with open(filename, 'wb') as f:
    with tqdm(unit='B', unit_scale=True, unit_divisor=1024, total=filesize) as pbar:
        def callback(data):
            f.write(data)
            pbar.update(len(data))
        ftp.retrbinary('RETR ' + filename, callback)

The code above opens a connection to the FTP server, downloads the file 'example.zip', and displays a progress bar using tqdm. The progress bar is updated with the amount of data that has been downloaded so far, and it shows the total size of the file being downloaded.

Conclusion

ftplib tqdm is an excellent combination of two powerful Python libraries for file transfer and progress bar display. This module makes it easy to add progress bars to file transfers via FTP, making the process more informative and user-friendly. If you need to download or upload files via FTP and want to add a progress bar to the process, ftplib tqdm is definitely worth checking out!