How to Download Images from the Web Using Python's urllib Library?

Downloading an Image Using URL:

A frequent task for web automation and data acquisition is downloading images from the web. Python offers several options to accomplish this, including the urllib library.

In the provided code, retrieving the image via urllib.URLopener() is correct, but it does not save the image to disk. To rectify this, you can use urllib's urlretrieve() function.

import urllib.request
urllib.request.urlretrieve("http://www.gunnerkrigg.com//comics/00000001.jpg", "00000001.jpg")

Here, the urlretrieve() function downloads the image located at the specified web address and saves it locally as "00000001.jpg". This function takes two arguments: the URL of the image and the destination path on your computer where it should be saved.

To download multiple images in a sequence, following the pattern discussed in the provided code, a loop can be used. For example:

for i in range(1, 1001):
    comicNumber = str(i).zfill(8)
    comicName = comicNumber + ".jpg"
    url = "http://www.gunnerkrigg.com//comics/" + comicName
    urllib.request.urlretrieve(url, comicName)

This loop iterates from 1 to 1000, and for each iteration, it generates the eight-digit comic number, URL, and comic name. By using urllib.request.urlretrieve() within the loop, you can download images sequentially with the desired file names.

The above is the detailed content of How to Download Images from the Web Using Python's urllib Library?. For more information, please follow other related articles on the PHP Chinese website!