If content_length and content_length > 2e8: # 200 mb approx return False content_length = header.get( 'content-length', None) To restrict download by file size, we can get the filesize from the Content-Length header and then do suitable comparisons. Return False return True print is_downloadable( '') Return False if 'html' in content_type.lower(): H = requests.head(url, allow_redirects= True)Ĭontent_type = header.get( 'content-type') import requestsĭoes the url contain a downloadable resource This allows us to skip downloading files which weren't meant to be downloaded.
That way involved just fetching the headers of a url before actually downloading it. I looked into the requests documentation and found a better way to do it. So if the file is large, this will do nothing but waste bandwidth. It works but is not the optimum way to do so as it involves downloading the file for checking the header. Headers usually contain a Content-Type parameter which tells us about the type of data the url is linking to.Ī naive way to do it will be - r = requests.get(url, allow_redirects= True) To solve this, what I did was inspecting the headers of the URL. When the URL linked to a webpage rather than a binary, I had to not download that file and just keep the link as is. This was one of the problems I faced in the Import module of Open Event where I had to download media from certain links. If you said that a HTML page will be downloaded, you are spot on. What do you think will happen if the above code is used to download it ? Now let's take another example where url is. The above code will download the media at and save it as google.ico.
Open( 'google.ico', 'wb').write(r.content) R = requests.get(url, allow_redirects= True) Let's start with baby steps on how to download a file using requests - import requests I will write about methods to correctly download binaries from URLs and set their filenames. I will be using the god-send library requests for it. Print("List url: ".format(folder.This post is about how to efficiently/correctly download files from URLs using Python. `from _context import AuthenticationContextįrom _context import ClientContextįrom import Fileįrom _creation_information import FileCreationInformationĭef read_folder_and_files(context, list_title): Meanwhile, my current running code (Downloading works fine, listing folders and files for root is working but whenever in Title I am giving any specific folder name other than Documents, it fails): I will go through your code and see if I am able to do it. Maybe I am going wrong somewhere, because my concept of Title is not right, so whenever I am trying to list a subfolder by giving that name as a title, I fail. But, to be able to recursively download all the files, I need to first list all the existing ones in a particular folder which after several trials, getting Not Found errors. I am being able to successfully download the files, given, I have to give till the file name.
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