Python with file download

The problem is it's not possible to keep whole file in memory; I need to read it in chunks. And this is a problem with the following code:. For some reason it doesn't work this way: it still loads the response into memory before it is saved to a file.

If you need a small client Python 2. With the following streaming code, the Python memory usage is restricted regardless of the size of the downloaded file:. See body-content-workflow and Response. It's much easier if you use Response.

Note: According to the documentation , Response. Not exactly what OP was asking, but Your chunk size could be too large, have you tried dropping that - maybe bytes at a time? It sounds as if python isn't flushing the data to file, from other SO questions you could try f.

Based on the Roman's most upvoted comment above, here is my implementation, Including "download as" and "retries" mechanism:. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Download large file in python with requests Ask Question. Asked 8 years, 6 months ago. Active 1 month ago. Viewed k times. Improve this question. JoeyC 10 10 silver badges 19 19 bronze badges.

Roman Podlinov Roman Podlinov Add a comment. Active Oldest Votes. First of all you have to install tqdm module. Now run the following command on your terminal. This is very nice. You can see the file size is KB and it only took 49 second to download the file. So guys we have successfully completed this Python Download File Tutorial. I hope, you found it helpful if yes then must share with others. And if you have any query regarding this tutorial then feel free to comment. And yes for getting python tutorials stay tuned with Simplified Python.

Save my name, email, and website in this browser for the next time I comment. Next we create a variable url that contains the path of the file to be downloaded. Keep in mind that you can pass any filename as the second parameter and that is the location and name that your file will have, assuming you have the correct permissions.

Run the above script and go to your "Downloads" directory. You should see your downloaded file named "cat. Note : This urllib. Because of this, I wouldn't recommend using it in favor of one of the methods below. We've included it here due to is popularity in Python 2. Another way to download files in Python is via the urllib2 module. The urlopen method of the urllib2 module returns an object that contains file data.

To read the contents of. Note that in Python 3, urllib2 was merged in to urllib as urllib. Therefore, this script works only in Python 2. The open method accepts two parameters, the path to the local file and the mode in which data will be written. Here "wb" states that the open method should have permission to write binary data to the given file.

Execute the above script and go to your "Downloads" directory.