Download a File¶
So we have bitpit installed and ready. Let’s start using it. In this tutorial we are going to make a little download program. It is a little bit similar to the downloader function but we will make it a little bit better.
First, we need to import the library:
import bitpit
Now let’s specify the URL we are going to download. We are going to download python logo:
url = 'https://www.python.org/static/img/python-logo.png'
Next comes bitpit business. We create a Downloader
instance:
dl = bitpit.Downloader(url)
Finally we start the download:
dl.start()
print('Download has started.')
Now the download will start. Notice that Downloader.start()
call will not
block. The message Download has started.
will be printed immediately before
the download finishes. Then our main thread will end but the downloading thread
will keep running until the file is fully downloaded or an error occures.
If you try the example above, you will see Download has started
message
printed on the screen and nothing else. The program will freeze until the
download finishes. Imagine if we have a very big file such as linux mint. It will take a long time without us
knowing how much we have downloaded. That is not so convenient isn’t it? We will
look at that later but for now, let’s look at the program we have written so far
import bitpit
#will download this
url = 'https://www.python.org/static/img/python-logo.png'
#this is our downloader
dl = bitpit.Downloader(url)
#start downloading and tell user download has started.
dl.start()
print('Download has started.')
#end of the main thread
In Display Download Information, we will make the program give us information about the download such as whether it has started or faced an error and also the download speed.