Download a torrent using python

Now before we dive into the code, we need some configurations to set, after you install the qBittorent client, you need to enable the qBittorrent Web UI using the following steps:. The following image should make everything clear:. Now that we have enabled the Web UI, you can go to the browser and see the qBittorrent web version using the address " You'll see a small login page as follows:.

Put the credentials you set in the configuration, and then log in, now you should be ready to see the qBittorrent Web UI:. If you're here, then congratulations! Skip to content. Star Branches Tags. Could not load branches. Could not load tags. Bash, ! Featured on Meta. New responsive Activity page. Linked 7. Related Hot Network Questions.

Question feed. Stack Overflow works best with JavaScript enabled. Accept all cookies Customize settings. Download ZIP. Script of example to download files by torrent in Python By: magnet url. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.

Learn more about bidirectional Unicode characters Show hidden characters. Copy link. Each client starts in the state choked and not interested. That means that the client is not allowed to request pieces from the remote peer, nor do we have intent of being interested. Consider Choked and Unchoked to be rules and Interested and Not Interested to be intents between two peers.

After the handshake we send an Interested message to the remote peer, telling that we would like to get unchoked in order to start requesting pieces. Until the client receives an Unchoke message - it may not request a piece from its remote peer - the PeerConnection will be choked passive until either unchoked or disconnected.

The following sequence of messages is what we are aiming for when setting up a PeerConnection :. As soon as the client gets into a unchoked state it will start requesting pieces from the connected peer.

The details surrounding which piece to request is detailed later, in Managing the pieces. If we know that the other peer have a given piece, we can send a Request message asking the remote peer to send us data for the specified piece.

If the peer complies it will send us a corresponding Piece message where the message payload is the raw data. This client will only ever have one outstanding Request per peer and politely wait for a Piece message until taking the next action.

Since connections to multiple peers are open concurrently, the client will have multiple Requests outstanding but only one per connection. If, for some reason, the client do not want a piece anymore, it can send a Cancel message to the remote peer to cancel any previously sent Request.

The remote peer can at any point in time send us a Have message. This is done when the remote peer have received a piece and makes that piece available for its connected peers to download. When pieces receive a Have message it updates the information on which pieces the peer has. The KeepAlive message can be sent at anytime in either direction. The message does not hold any payload. Given that the connection was created successfully, the PeerConnection will send and receive a Handshake message.

Once a handshake is made, the PeerConnection will use an asynchronous iterator to return a stream of PeerMessages and take the appropriate action. Using an async iterator separates the PeerConnection from the details on how to read from sockets and how to parse the BitTorrent binary protocol. The PeerConnection can focus on the semantics regarding the protocol - such as managing the peer state, receiving the pieces, closing the connection.

Upon iterating calling next the PeerStreamIterator will read data from the StreamReader and if enough data is available try to parse and return a valid PeerMessage. So as soon as the buffer have enough data for the next message it will be parsed and returned from the iterator. Struct use compact strings as descriptors on what to convert, e. This makes it easy to create unit tests to encode and decode messages. Since the message length is 5 and ID only use a single byte we know that we have four bytes to interpret as the payload value.

Using struct. That is basically it regarding the protocol, all messages follow the same procedure and the iterator keeps reading from the socket until it gets disconnected. See the source code for details on all messages.

So far we have only discussed pieces - pieces of data being exchanged by two peers. It turns out that pieces is not the entire truth, there is one more concept - blocks. If you have looked through any of the source code you might have seen code refering to blocks, so lets go through what a piece really is.