Downloading Files over HTTP with Python Requests
We saw in our previous post how to use Python’s requests library to perform some basic operations …
Now’s the time to build an ultimate File Downloader that can download large files and has the functionality to resume the broken link… cool ! huh!
So the question is what will be downloading ?? lets, download an image from bing images!!
Now, lets Code !!
import requests as req
res = req.get(img_adrs)
now, establish a connection with the server hosting the file using
We should chunk up the data by streaming. so it would require to download some Kbs of data only
res = req.get(img_adrs, stram=True)
To store the data of the image(byte sequence) lets create a var
data = b''
for chunk in res.iter_content(chunk_size=1024):
Now lets loop over the chunks of data using
Now lets write the byte data into a file :
this will open a file named
Connection Lost! How to resume the Download ??
firstly don’t panic and follow these steps :
Check how much data is downloaded
>>> data = open('img.jpg')
we have downloaded 860 bytes of data … Now the question is how much is left to download ? To find this out lets check the
this gives us the size of the file in bytes which in our case is around
For this task we are going to use
Now after getting the data lets append it into the file.
here we opened the file in
From these steps U can create your own Universal file Downloader Class from scratch in python !!!
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