Python code to download a file from a url

We also changed the tqdm default unit from iteration to bytes. After that, in each iteration, we read a chunk of data and write it to the file opened , and update the progress bar. Here is my result after trying to download a file, you can choose any file you want, just make sure it ends with the file extension. Alright, we are done, as you may see, downloading files in Python is pretty easy using powerful libraries like requests , you can now use this on your Python applications, good luck!

Here are some ideas you can implement:. By the way, if you wish to download torrent files, check this tutorial. Finally, many of the Python concepts aren't discussed in detail here, if you feel you want to dig more into Python, I highly suggest you get one of these amazing courses:. Writing a server and client Python scripts that receives and sends files in the network using sockets module in Python. Using Python standard library pickle module to save pickle and load unpickle any type of object in Python.

Sharing is caring! How to Transfer Files in the Network using Sockets in Python Writing a server and client Python scripts that receives and sends files in the network using sockets module in Python. How to Use Pickle for Object Serialization in Python Using Python standard library pickle module to save pickle and load unpickle any type of object in Python.

Your email address will not be published. Subscribe for our newsletter. It works but is not the optimum way to do so as it involves downloading the file for checking the header. So if the file is large, this will do nothing but waste bandwidth. I looked into the requests documentation and found a better way to do it.

That way involved just fetching the headers of a url before actually downloading it. This allows us to skip downloading files which weren't meant to be downloaded. To restrict download by file size, we can get the filesize from the Content-Length header and then do suitable comparisons.

We can parse the url to get the filename. This will be give the filename in some cases correctly. However, there are times when the filename information is not present in the url. In that case, the Content-Disposition header will contain the filename information. Here is how to fetch it.

The url-parsing code in conjuction with the above method to get filename from Content-Disposition header will work for most of the cases. Use them and test the results. These are my 2 cents on downloading files using requests in Python.

Let me know of other tricks I might have overlooked. This article was first posted on my personal blog. Especially if the files are big. That is good idea and using with as a context manager is more better and looks great. Mobile App Development.

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