Python download webpage file

The default assumption is that the main page in a given directory will be named index, usually index. The URL can also include an optional port number. Without getting into too much detail, the network protocol that underlies the exchange of information on the Internet allows computers to connect in different ways. Port numbers are used to distinguish these different kinds of connection. As you know, there are usually many web pages on a given website.

These are stored in directories on the server, and you can specify the path to a particular page. Finally, some web pages allow you to enter queries.

The Old Bailey Online website, for example, is laid out in such a way that you can request a particular page within it by using a query string. As a digital historian you will often find yourself wanting to use data held in scholarly databases online. To get this data you could open URLs one at a time and copy and paste their contents to a text file, or you can use Python to automatically harvest and process webpages.

The Python language includes a number of standard ways to do this. The URL for the entry is. By studying the URL we can learn a few things. If you change the two instances of 33 to 34 in your browser and press Enter, you should be taken to the next trial. Unfortunately, not all websites have such readable and reliable URLs. Here we are not so much interested in what the transcript says, but what features the page has. Notice the View as XML link at the bottom that takes you to a heavily marked up version of the text which may be useful to certain types of research.

Improve this question. Add code to use the url to extract the hostname, don't hardcode it. If your sole goal is to have less lines, there isn't much else beside maybe using some more modern libraries to aid the work like python-requests and BeautifulSoup 4 or even some full toolset like Scrapy. Add a comment.

Active Oldest Votes. Improve this answer. Padraic Cunningham Padraic Cunningham k 21 21 gold badges silver badges bronze badges.

Parse the response as HTML. Search the resulting tree for "a" tags. Construct the full file path from the "a" tag's href attribute. Download the file at that location. Community Bot 1 1 1 silver badge. Jared Goguen Jared Goguen 8, 2 2 gold badges 13 13 silver badges 34 34 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.

Post as a guest Name. You can get the URL of image source by right-clicking on the image and selecting the View Image option. To overcome this problem, we do some changes to our program:. Setting stream parameter to True will cause the download of response headers only and the connection remains open. This avoids reading the content all at once into memory for large responses. A fixed chunk will be loaded each time while r.

All the archives of this lecture are available here. So, we first scrape the webpage to extract all video links and then download the videos one by one. It would have been tiring to download each video manually. In this example, we first crawl the webpage to extract all the links and then download videos.

This is a browser-independent method and much faster! One can simply scrape a web page to get all the file URLs on a webpage and hence, download all files in a single command- Implementing Web Scraping in Python with BeautifulSoup This blog is contributed by Nikhil Kumar.

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